diff --git a/.gitignore b/.gitignore
index 1e6192a..cb560d5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,4 +24,29 @@ _testmain.go
 *.test
 *.prof
 
-othertests
+# Remove binaries
+day01/day01
+day02/day02
+day03/day03
+day04/day04
+day05/day05
+day06/day06
+day07/day07
+day08/day08
+day09/day09
+day10/day10
+day11/day11
+day12/day12
+day13/day13
+day14/day14
+day15/day15
+day16/day16
+day17/day17
+day18/day18
+day19/day19
+day20/day20
+day21/day21
+day22/day22
+day23/day23
+day24/day24
+day25/day25
diff --git a/2015/day01/input b/2015/day01/input
new file mode 100644
index 0000000..71a7803
--- /dev/null
+++ b/2015/day01/input
@@ -0,0 +1 @@
+()(((()))(()()()((((()(((())(()(()((((((()(()(((())))((()(((()))((())(()((()()()()(((())(((((((())))()()(()(()(())(((((()()()((())(((((()()))))()(())(((())(())((((((())())))(()())))()))))()())()())((()()((()()()()(()((((((((()()())((()()(((((()(((())((())(()))()((((()((((((((())()((()())(())((()))())((((()())(((((((((((()()(((((()(()))())(((()(()))())((()(()())())())(()(((())(())())()()(()(()((()))((()))))((((()(((()))))((((()(()(()())())()(((()((((())((((()(((()()(())()()()())((()((((((()((()()))()((()))()(()()((())))(((()(((()))((()((()(()))(((()()(()(()()()))))()()(((()(((())())))))((()(((())()(()(())((()())))((((())))(()(()(()())()((()())))(((()((()(())()()((()((())(()()((())(())()))()))((()(())()))())(((((((()(()()(()(())())))))))(()((((((())((((())((())())(()()))))()(())(()())()())((())(()))))(()))(()((()))()(()((((((()()()()((((((((()(()(())((()()(()()))(())()())()((())))()))()())(((()))(())()(())()))()((()((()(()()())(())()()()((())())))((()()(()()((()(())()()())(((()(()()))))(())))(()(()())()))()()))))))()))))((((((())))())))(()(())())(()())))))(()))()))))))()((()))))()))))(()(()((()())())(()()))))(((())()))())())())(((()(()()))(())()(())(())((((((()()))))((()(()))))))(()))())(((()()(()))()())()()()())))))))))))))(())(()))(()))((()(())(()())(())())(()())(())()()(()())))()()()))(())())()))())())(())((())))))))(())))(())))))()))))((())(()(((()))))(()))()((()(())))(()())(((((()))()())()()))))()))))()))())(()(()()()))()))))))((()))))))))))()((()))((()(())((())()()(()()))()(()))))()()(()))()))(((())))(())()((())(())(()())()())())))))))())))()((())))()))(()))()()))(((((((()))())(()()))(()()(()))()(()((()())()))))))(((()()()())))(())()))()())(()()))()()))))))))(())))()))()()))))))()))()())))()(())(())))))()(())()()(()()))))())((()))))()))))(()(((((()))))))))())))())()(())()()))))(())))())()()())()()())()(()))))()))()))))))))())))((()))()))()))())))()())()()())))())))(()((())()((()))())))))())()(())((())))))))))))())()())(())())())(()))(()))()))())(()(())())()())()()(()))))(()(())))))))(())))())(())))))))())()()(())())())))(())))))()))()(()())()(()))())())))))()()(()))()))))())))))))))()))))()))))))())()())()()))))()())))())))))))))))()()))))()()(((()))()()(())()))))((()))))(()))(())())))(())()))))))(()))()))))(())())))))()))(()())))))))))))))())))))))))()((()())(()())))))))((()))))(())(())))()(()())())))())())(()()()())))()))))))())))))())()()())))))))))))()()(()))))()())()))((()())(()))))()(()))))))))))()())())(((())(()))))())()))()))()))))))()))))))(()))))()))))()(())))(())))(()))())()()(()()))()))(()()))))))))()))(()))())(()()(()(()())()()))()))))))))(())))))((()()(()))())())))))()))())(()())()()))())))()(()()()()))((())())))())()(()()))()))))))))(()))(())))()))))(()(()())(()))))()())())()))()()))())))))))))))())()))))))()))))))))())))))()))))())(()())))(())()))())())))))()()(()()())(()())))()()))(((()))(()()()))))()))))()))))((())))()((((((()()))))))())))))))))))(((()))))))))))))(())())))))())(()))))))(()))((()))())))()(()((()))()))()))))))))))())()))()(()()))))())))())(())()(()))()))())(()))()))))(()()))()()(())))))()))(())(()(()()))(()()())))))(((()))))))()))))))))))))(())(()))))()())())()()((()()))())))))(()))))())))))))()()()))))))))())))()(((()()))(())))))(((())())))))((()))()(()))(()))))(()())))(()))())))))()))))(())(())))()((()))(())())))()()))()))))))))()))(()()()(()()()(()))())(())()())(((()))(())))))))))(((()())))()()))))))))()(())(()))()((((())(())(()())))()))(((())()()()))((()))(()))())())))())))(()))())()())())(()(())())()()()(())))())(())))(())))(())()))()))(()((()))))))))())(()))))))())(()()))()()))()(()(()())))()()(()((()((((((()))(())))()()()))())()))((()()(()))())((()(()(()))(()()))))()())))()))()())))))))()()((()())(())))()))(()))(())(()))())(()(())))()()))))))(((()(((()()))()(()(())())((()()))()))()))()))()(()()()(()))((()())()(())))()()))(((())()()())(())()((()()()()(()(())(()()))()(((((()())))((())))))(()()()))))(((()(())))()))((()((()(())()(()((())))((()())()(()))(((()())()()(()))(())(((()((()())()((())()())(((()()))((()((())(()))(()())(()()()))((()))(())(()((()()())((()))(())))(())(())(())))(()())))(((((()(()(((((()())((((()(()())(())(()()(((())((()(((()()(((()()((((((())))())(()((((((()(()))()))()()((()((()))))()(()()(()((()()))))))(((((()(((((())()()()(())())))))))()))((()()(())))(())(()()()())))))(()((((())))))))()()(((()(()(()(()(()())()()()(((((((((()()())()(()))((()()()()()(((((((()())()((())()))((((((()(()(()(()())(((()(((((((()(((())(((((((((())(())())()))((()(()))(((()()())(())(()(()()(((()(())()))())))(())((((((())(()()())()()(((()(((())(()(((())(((((((()(((((((((()))(())(()(()(()))))((()))()(())())())((()(()((()()))((()()((()(())(())(()((())(((())(((()()()((((((()()(())((((())()))))(())((()(()((())))(((((()(()()())())((())())))((())((()((()()((((((())(((()()(()())())(()(()))(()(()))())())()(((((((()(((()(())()()((())((()(()()((()(()()(((((((((((())((())((((((())((()((((()(()((((()(((((((())()((()))))())()((()((((()(()(((()((()())))(())())(((()(((())((((((()(((((((((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\ No newline at end of file
diff --git a/2015/day01/main.go b/2015/day01/main.go
new file mode 100644
index 0000000..4b2573b
--- /dev/null
+++ b/2015/day01/main.go
@@ -0,0 +1,70 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+)
+
+func main() {
+	var input []string
+	var readInp string
+	for {
+		_, err := fmt.Scan(&readInp)
+		if err != nil {
+			if err != io.EOF {
+				log.Fatal(err)
+			}
+			break
+		}
+		input = append(input, readInp)
+	}
+
+	var total int
+	var wentToBasement bool
+	var procIdx int
+	for _, k := range input {
+		for i := range k {
+			procIdx++
+			if k[i] == '(' {
+				total++
+			} else if k[i] == ')' {
+				total--
+			}
+			if total < 0 && !wentToBasement {
+				wentToBasement = true
+				fmt.Printf("Went to basement at direction #%d\n", procIdx)
+			}
+		}
+	}
+	fmt.Printf("Santa should go to floor %d\n", total)
+
+	fmt.Println("\nBen's Solution:")
+	bens()
+}
+
+func bens() {
+	file, err := os.Open("./input")
+	floor := 0
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+
+	defer file.Close()
+	for {
+		data := make([]byte, 1)
+		_, err := file.Read(data)
+		if err != nil {
+			break
+		}
+		if data[0] == '(' {
+			floor = floor + 1
+		} else {
+			floor = floor - 1
+		}
+
+	}
+	fmt.Printf("Floor: %d\n", floor)
+}
\ No newline at end of file
diff --git a/2015/day01/problem b/2015/day01/problem
new file mode 100644
index 0000000..2b1d5b5
--- /dev/null
+++ b/2015/day01/problem
@@ -0,0 +1,81 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 1: Not Quite Lisp ---
+
+   Santa was hoping for a white Christmas, but his weather machine's "snow" function is powered by
+   stars, and he's fresh out! To save Christmas, he needs you to collect fifty stars by December
+   25th.
+
+   Collect stars by helping Santa solve puzzles. Two puzzles will be made available on each day in
+   the advent calendar; the second puzzle is unlocked when you complete the first. Each puzzle
+   grants one star. Good luck!
+
+   Here's an easy puzzle to warm you up.
+
+   Santa is trying to deliver presents in a large apartment building, but he can't find the right
+   floor - the directions he got are a little confusing. He starts on the ground floor (floor 0)
+   and then follows the instructions one character at a time.
+
+   An opening parenthesis, (, means he should go up one floor, and a closing parenthesis, ), means
+   he should go down one floor.
+
+   The apartment building is very tall, and the basement is very deep; he will never find the top
+   or bottom floors.
+
+   For example:
+
+     • (()) and ()() both result in floor 0.
+     • ((( and (()(()( both result in floor 3.
+     • ))((((( also results in floor 3.
+     • ()) and ))( both result in floor -1 (the first basement level).
+     • ))) and )())()) both result in floor -3.
+
+   To what floor do the instructions take Santa?
+
+   Your puzzle answer was 138.
+
+--- Part Two ---
+
+   Now, given the same instructions, find the position of the first character that causes him to
+   enter the basement (floor -1). The first character in the instructions has position 1, the
+   second character has position 2, and so on.
+
+   For example:
+
+     • ) causes him to enter the basement at character position 1.
+     • ()()) causes him to enter the basement at character position 5.
+
+   What is the position of the character that causes Santa to first enter the basement?
+
+   Your puzzle answer was 1771.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/1/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Not+Quite+Lisp%22+%2D+Day+1+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F1&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F1
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F1&title=I%27ve+completed+%22Not+Quite+Lisp%22+%2D+Day+1+%2D+Advent+of+Code
diff --git a/2015/day02/input b/2015/day02/input
new file mode 100644
index 0000000..74fefbf
--- /dev/null
+++ b/2015/day02/input
@@ -0,0 +1,1000 @@
+3x11x24
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+1x9x27
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\ No newline at end of file
diff --git a/2015/day02/main.go b/2015/day02/main.go
new file mode 100644
index 0000000..e80ae69
--- /dev/null
+++ b/2015/day02/main.go
@@ -0,0 +1,73 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	var input []string
+	var readInp string
+	for {
+		_, err := fmt.Scan(&readInp)
+		if err != nil {
+			if err != io.EOF {
+				log.Fatal(err)
+			}
+			break
+		}
+		input = append(input, readInp)
+	}
+	var totalPaper, totalRibbon int
+	for _, k := range input {
+		l, w, h := parseInputString(k)
+		totalPaper += calcPaperForPresent(l, w, h)
+		totalRibbon += calcRibbonForPresent(l, w, h)
+	}
+	fmt.Printf("The elves need %d sq ft of wrapping paper\n", totalPaper)
+	fmt.Printf("and %d ft of ribbon.\n", totalRibbon)
+}
+
+func parseInputString(inp string) (int, int, int) {
+	dim := strings.Split(inp, "x")
+	if len(dim) == 3 {
+		pt1, _ := strconv.Atoi(dim[0])
+		pt2, _ := strconv.Atoi(dim[1])
+		pt3, _ := strconv.Atoi(dim[2])
+		return pt1, pt2, pt3
+	}
+	return 0, 0, 0
+}
+
+func calcPaperForPresent(l, w, h int) int {
+	pt1 := l * w
+	pt2 := w * h
+	pt3 := h * l
+	pt4 := pt3
+	if pt1 < pt2 && pt1 < pt3 {
+		pt4 = pt1
+	} else if pt2 < pt3 {
+		pt4 = pt2
+	}
+	return pt1*2 + pt2*2 + pt3*2 + pt4
+}
+
+func calcRibbonForPresent(l, w, h int) int {
+	var low1, low2 int
+	low2 = h
+	if l < w {
+		low1 = l
+		if w < h {
+			low2 = w
+		}
+	} else {
+		low1 = w
+		if l < h {
+			low2 = l
+		}
+	}
+	return low1*2 + low2*2 + (l * w * h)
+}
\ No newline at end of file
diff --git a/2015/day02/problem b/2015/day02/problem
new file mode 100644
index 0000000..271d078
--- /dev/null
+++ b/2015/day02/problem
@@ -0,0 +1,77 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 2: I Was Told There Would Be No Math ---
+
+   The elves are running low on wrapping paper, and so they need to submit an order for more. They
+   have a list of the dimensions (length l, width w, and height h) of each present, and only want
+   to order exactly as much as they need.
+
+   Fortunately, every present is a box (a perfect right rectangular prism), which makes
+   calculating the required wrapping paper for each gift a little easier: find the surface area of
+   the box, which is 2*l*w + 2*w*h + 2*h*l. The elves also need a little extra paper for each
+   present: the area of the smallest side.
+
+   For example:
+
+     • A present with dimensions 2x3x4 requires 2*6 + 2*12 + 2*8 = 52 square feet of wrapping
+       paper plus 6 square feet of slack, for a total of 58 square feet.
+     • A present with dimensions 1x1x10 requires 2*1 + 2*10 + 2*10 = 42 square feet of wrapping
+       paper plus 1 square foot of slack, for a total of 43 square feet.
+
+   All numbers in the elves' list are in feet. How many total square feet of wrapping paper should
+   they order?
+
+   Your puzzle answer was 1588178.
+
+--- Part Two ---
+
+   The elves are also running low on ribbon. Ribbon is all the same width, so they only have to
+   worry about the length they need to order, which they would again like to be exact.
+
+   The ribbon required to wrap a present is the shortest distance around its sides, or the
+   smallest perimeter of any one face. Each present also requires a bow made out of ribbon as
+   well; the feet of ribbon required for the perfect bow is equal to the cubic feet of volume of
+   the present. Don't ask how they tie the bow, though; they'll never tell.
+
+   For example:
+
+     • A present with dimensions 2x3x4 requires 2+2+3+3 = 10 feet of ribbon to wrap the present
+       plus 2*3*4 = 24 feet of ribbon for the bow, for a total of 34 feet.
+     • A present with dimensions 1x1x10 requires 1+1+1+1 = 4 feet of ribbon to wrap the present
+       plus 1*1*10 = 10 feet of ribbon for the bow, for a total of 14 feet.
+
+   How many total feet of ribbon should they order?
+
+   Your puzzle answer was 3783758.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . https://en.wikipedia.org/wiki/Cuboid#Rectangular_cuboid
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/2/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22I+Was+Told+There+Would+Be+No+Math%22+%2D+Day+2+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F2&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F2
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F2&title=I%27ve+completed+%22I+Was+Told+There+Would+Be+No+Math%22+%2D+Day+2+%2D+Advent+of+Code
diff --git a/2015/day03/input b/2015/day03/input
new file mode 100644
index 0000000..a5954e7
--- /dev/null
+++ b/2015/day03/input
@@ -0,0 +1 @@
+v>v<vvv<<vv^v<v>vv>v<<<^^^^^<<^<vv>^>v^>^>^>^>^><vvvv<^>^<<^><<<^vvvv>^>^><^v^><^<>^^>^vvv^<vv>>^>^^<>><>^>vvv>>^vv>^<><>^<v^>^>^><vv^vv^>><<^><<v>><>^<^>>vvv>v>>>v<<^<><^<v<>v>^^v^^^<^v^^>>><^>^>v<>^<>>^>^^v^><v<v>>><>v<v^v>^v<>>^><v>^<>v^>^<>^v^^^v^^>>vv<<^^><^<vvv>^>^^<^>>^^^^^v^<v>vv<>>v^v<^v^^<><^<^vv^><>><><>v>vvv^vv^^<<><<vvv><<^v^><v<>vvv^<^>vvvv^>^>>^v^<v^vv<^^v<>v>vv^<>><v<<<^v^<<><v<^<^<><^^^>^>>v>^>v^<>v><^<^<v^>^^vv<^^<>v^v^vv<>>>>v^v<>><^^v>vv^^>v^v>v<vv>>v>><v^v^v>vv>^^>^v><<vv^v^^vv<^v><^<<v<v^>vv^^^<v^>v>v^^^>><^^<v^<^>>v><vv<v^^>^^v>>v^^^<^^v>^v>><^<^<>>v<<^^vv>^^^v<^<^<v<v^^vv>^vv^>>v^><v>><<<>^vv^<^<>v^^<<<v<^>^><><v^^>>^^^<^vv<^^^>><^^v>^^v^<v^v^>^^<v>^<^v<^<<<<^<v^>v^<^^<>^^>^><<>>^v><>><^<v><^^^>>vv>^><vv>^^^^^v^vvv><><^<^>v>v^v^>^><><^<^><>v<<vv<^>><>^v^^v>^<<<>^v^>^<<v^vv<>v^<v^^vv><<v^<>>>^<v>vv>v>>>^<^>><vv<>>>>v<v>>>^v>v><>>vvv<^^><<^>^>v<^vvvv<v><vv<><^^^v^^^>v^v<>v<^^v>>><>v<v^>>v><v^>>^^<v<<<^<v<><^^v><<v^><<<<^vv<^<>^><vv<<<<^>>>^v>^v>vv>^v<>v>v<v><^>>v>>^>^><^<v^v^>^v<><><^^>^<vvvv^^<>^^^>vv^v^v>^v^^v^^v><v^<^<>><^<v>v>>vv<<v>>vvvv<vv><>>^v^>^>>v^v^<<<vv<><v<<>>>^v<<v>^^vv^><>v>^>v><<<<<<<^>^^v^<<^^>>vvv^<><>><>^^v<<vv><^^v<^^><vv>v^>>>v^v><v^v<^>v^><>v<<>v>^^v><<<<><^v^v>>^<>^<<>^<v<<>>v<<>><^<<<<^v>^<^v>v>vv<v<v<<>^>v<^<<>v^<vvvv^>v>><<v><v<>v>v>>v^vvv^^>>>v^<^<<^^<<<><v>v^<<v<<<>v<^^<><v<v^^<v>^>v>>v<>^>^^>>^v<<>v^^^>>>^vv<^v<v>^>v>^><>v^^<>^^v^^vv^<^>^<<>><<^>^v>>><<<vvvv><<><v<^v^v<vvv^<><<^<vv><v^v^v^>v>v^<vvv^><^><^<vv><>>v^>^^^<>><v^<^^^<>v<<v<^v>>>^>>v^><<>vvv><^>>v><v><>v>>^>v><<><<>^<>^^^vv><v^>v^^>>^>^<^v<v<^^<^vvvv>v<v>^>v^>^><^<vvvv><^><><<v<>v<v^><^<v^>^v^^<<<<^><^^<^><>>^v<<^<<^vv>v>>v<^<^vv>><v<vv>v<v<v>^v<>^>v<>^v<<<v>>^^v>>><vvv>v^>^v^v>^^^v<vvvv>><^>vvv^<vv^^vv><<<>v<>v>^<vvv^<^<v<v<^vv^^>>vv^<^^v^><^^^^^v<^<v<^>>>vv^v^>^<v>^<><v^<^v>>><^v^<<v<<v<>v>^v<v^v>>^^v<<v<v<<>>>vv>>^v>>^<<<<^><<<><^^>>v<>^vvvv>v^^^>^^^>^<vvvv><^^v<v<>v<^v^v<<v^^^v^<v<^v>v^^<>^>^<^v>vv<v^vv<^<<>v><<^><><^^v<<><^^><>^v>^<><<^<^^<<>vv<>^^<<^>><<<>>vvv>^>v^^v^><<^>v>^>^<^<<>v<^>vv^v^v<>vv<<v>vv<vv><^>v^<>^vv^v^<v<^>>>>v^v><^<><<>vv^<vvv^>>vvv^>v>>><^^vv<vvvv>v<^<^>>^^>^^vv>>><^v<>^v^<<>v^^^<v>^>>^<^<v>>^v<^^^<v>^v>^>>v<vv>>^<v^<<>>^>>><v>v^<<^<v>>^<<^^<>v<^v<^<>v^v>^^v<vvvv>^vv>vvv>v^<^>><v^^vv<<<^>vvvv<>>^^<>v^<><>v<^<>v<>^>v<>vv<v^v>>v<v<^<v^^v^vv^vvv><^^>v>><>>^<^^<>>^>^<v^>>vvv^v><v>>^>^>v><><<><vv^v>v<>^v<^vv^^^<>^^<<^^^v<>><v<^<^<^<^^><v^v<^>v^>vvvv>^^v^>^<v<^^^>>^<<vv^<><><^^^^<<>^<><v>vv^<><^>^^<>v^<>>>v><>vvvvv>v>v^^>^<<vvvv<>vv>>v<<^<>^^^v^<><>>^<<<v<v<>>>><><v>v<v<>>^>^^^^vv^^<<><^^<<vv<^<>v>vv<v<><<<^<<v<<<<>v<>>^<^>^>><v>v>><^^<>><<<><<><v^^v<<><^<^v<v^><^^v<<>><<<<^>v^<v>><v^><v<vvv>v^v^<v><<>>v<><<v>^<>><>>^><>v^v>v<<>v<>v^^><<>>>v<<>>>>^>v>><v<<>>>vv>v>^<^^^<>v<v>^<^^v^vvv^>vv>^<v><vvvv>^<<>vvv<<<vv>^^<^>^>>v>v<<<<<>^^vv^>>v>^<^<v^v^>^v>>v>^v<><>^<^>v>v<<<^^^v>^<<<>vvv^v^^>^>>^>v>v<>^^><>>v>^>v<<<^^^v^<v^vv>><><^<^<><vvv<v^>>^v>vv<^v<<^vv>v^<<v>v>v>^v^>^v<<^v^vv>v<v>^<<><v^>>v<>><v<<<^v<<>vvv^<vv<vvv<<>^vv^^v><^>v^vv<<v^<<^^^<^<>^^<<>v<><<v>^><>^<><<v<v^^>vv<>^<v<^<vvv>vv>v><^^v<>><^v^v><><>><v<v>vv<>>><v^^v<>><<^>>><^^^vvv<<<vv<<^v<<<>><<vv>>>>v<<<<<vv><><v>v^^<<^vv^<vv<>>vv>^<>^v^^<>^^^vv>v^^<v<><v>v<v>>^v<v<>>^<v^^><>v^^^>v^^v<vv><^>v^v^<>v>v<v<^^>>v<^^vv^v<^^^^vv<<><<^>>^^<<v^^<<^>v^>>^^^><^^>^v^v>^<<v<vv<<<v<^^^>^>>^v<>^<^>v>^>^v^<^^^<^vv<v><^^>>v<v>^>^v^>>>>^v>^^<<^<v^v<^<<v<<^><^^<v^<><v>v^<<v^^<><<>>><vv<<><>^<>>>v<<v^^^v^^<<<vv<<^<^<^vv^<><><<^^<^^>v^>^<v<>>v^v<><<v>^^v>^<^<vvv<v>v^v>>>^^<^<v^>^vv<<<v<<>^><><^<>v>>>v<v^<>v>><^^^v^^^v<^^<vv^^^>v>v<>>^^<><>v>^<v<>^>>>><>v>^v>^vv^v<vv<<^^>><v<>^>^^<v<^>^<vvv>><>^<<>>><<<><>^^<<<v<>v^>v>v<v>^^^>^>^v<<>v>vv>><<<v>^^<v><vv<<v^^>^>>^><^>v<^<^v>><^^>v<vv^^><><>^><<><>v^>v<><^^>><>^<^^v<^<<v>><v><<<^^<<v<^vv^v<>><>>>^>v<vvv^>^<><v^><^<<^vv<^v^v^v<>v^^v>v^<^>^vv^>>><<>v^vv^<>^v^><<v^v<v>v^<><>>v^v^><>v^vvv^^^<<^<<v<<v<^vv^>>v^v>^^<v<>><>v>>v^<>^>v>^>><<>v^v><^v>v>>><v<v><^<^^>vv<v><^>^<^>^^v><><v<^^v<<><^<<v^<v<<><^^vvv^v>^>^<>>vv>v^^v^^vv<^^>><v^^vv><^v>v^<<v<^v>vvv<>>^v><<>^v<<<>^><^vv><<^^<v^>v<<v>^vv<>^v>>>><<<<^^<^v>^<^^<^<^^>>^^v>^^^^v^^^<<>^^vv<<v^^><v>><^<<><>^>v<>>v^^^>^v^^v^<v^v>v>>>>>^v>^>^^<vvv^^<v^<<<v<<>v>><^^^v<<^^<v>>^<^<^><^<<v^v><<vv<^<>>v>v>^v<><<v>^>vv^v<v>v><^<v>><>^<vv<v^^^^v<^^>><<^^>v>v>^^^<>v>^v^^>vv^vv<^^>><>^>^<>v>><>^v<<v>v>^><^^^v^<vv><<^v^>v^>vv>v^<>v><vv><^v>v<><v^v^v<^v<>^v<v^<<><<v>>^v><v>^^<>vvv^>^<<v^>><^>><^<>^v<v<v<^vvv<><<^v^<v>><<<v>^<^<v>v>^vv^v>v<^^vv<<vvv^<v>><>vv^>v<<>v<vvvv>>v>^^>>><<<^>^vv>><v>^^^>v<^vv<>v<<<v<<<<v>>>>^<^^^^>v<^^<><v>v>v<v^>vv^>v>v<^>^v^<>v>>vvv>^^><^vvv>><>>>^<<^<v<>>>v^^><v<v>>^><>v<^^v^<<v><>^<>>><^v^v>>>^vvvv^<><<<v<^>>v>^v^<v<v<<^<<v^vv^v>v<v<>>v<v^<<<><v^>><^<<^>^^><v>v<^v^<^>v>^<<v>v^<>v^<>vv^<>^>^>v^>^vv<>^^<<>>v<>^v<><v^><><<<vv>v>v^>vv^><<<<v>^v<><>^^<vv>v^^v^^^<v<^^><v^v<>><v<vv>^<>>><vv<^v<<>>^><>>v<v^v^>>>v<<>v<<<<<<<^v<<^^^v<^v<>v^^<<<^<>>v^vv<v>^<^^<^^<<^>vv><^<^^v<<<^><^v<^><>v<vv^>^v^^>>><<vv^^v><^<<^<>>^>>^<<<<v^vv<>>>v>^v>><>v>>v>><>v>><^^><v>^^vv<^^<^>vv><<^>><<><v>^vvv><^v^>vvv^>>^<><^>^<<>>v^v>v<<>^>>^>v<^^<^<<>^^v<vvvvv^^^<^<>^^v>v<>^<^^<<v>v^^vvv^^v>^vv<v^>^<>v<^v^>^<v><v<<<^v<v<v^^<vvv>vv<<vv>v^<<v<^<vv><^>^><^^<^^<<v^^<v^v<v^^^^>^>vv^<>^<>^>^^<^v><<<^>vv^vv>v^v<>^^v^<^^^vvv^><v^<v^^<v<>v^<><>v>vv<^v^>>^v<^^vv>vv>^>><<<<v^^<^><>^><>>v<>>v>^v<^vv>^^>^<^<<v^>>v^v<^^v<vv<^<><^^>^^<>^^^<vv<v<<^^>^>^vv<^>><^<vvv^<>>vv^><v>v^>^vv>^>v^^<>>^v<>>v<^>^v>vv^<vv<^^>>^<v>>>>vvv>vv>^><^v<<<>^^v>v^v<^^^v^^>^><<^^>^<v>><^^^^^<v<vv<v<^<>^^<^v<^>>vv>>^v^vv<>><>^>>>^<v>^^^^><^<<<v<>^v<><vvv^<^^>vv^>>v<vvvv><v^v><^vv<^v<><vvv<vv>v<>^v^<<>>>>v^^>^vv<<vvv<^^><v><><<>v^v<^<^>><vv>^^><^>^><<><v<^v^><^<><>vv>>>>^><<^^^<^v^>^>^^>^<^><v><^^<^^<>><><v>><<<>^>^^v<>^<<<v>>vv>^>>^>^<>>vv<^^vv<>v<>^^>^v<v^^^^v<>^<v>v^v>^^^<v>v<<<^vv^><>^<v>>^^vv>v^<<^><>>vv^^^^^>v>>v<<<>^<vvv<<><><^v<^v<^>^<>^vvv>^>v><<<vv<>v>vv<v<<v>^<^^>v^v>^<^v^<<vvv^^<>^v<<^>^<><>^^<>>^^<^v^<^<v<><<^><v<>v^^>v^v^^^<^v<<^v>^>>^^^^^><<<vv^>>v^><v^^vv><>v^^<^v<^<v^^><<v>v^^^><^^^><<<<<>^<<^<>>v<<v^v^^v<<>^<vv>>><^^^<>>>>vvv>v<>>>v^v^v<^<<^>^<<>v>>^>^^><^><<^v^^<^<>v^v>vv<>>>>>>v<<><v^<v<>>^^>v<<<>^<<v><^><<^v>vv>>>><><>v^<^v><v^<<<<^v><^>v>>^^^v<^>>^>>v<<^<<>vvv>>^v<>>^v><<<^v^v<><v>^vvv<v<v>^^^<><vv^<<>vvv<v<^^v^^><v<^v<^v^<v<^>^^^>>v>^<v^>>^<><<><vv<>vv>^v^>>^<<v<^^v>v<v<vvv>><><<><vvvvv<^v<^>^^><>^<<>^v<<>>v^vv<<>^^v^v^v><^>v>v<^<<^<^>vv>^v<<^>^>>v^<<v^>v^^v^^<v^v>>><vv><<<>^v>><><v<vv<^>v<>><^v>^^v<<<<^v^vv<<<<><><^<^<^v><<^^v^<<<<<^^><^^>vv<v<^<v>v<^><><v<>vvv^<vv>v^>^>^^^v<<^<^^>vv<v^v^v>^vv^><^v^<<>v<^^>^vv<<>^<<><^>v^<<^<>v><><>v<<^^><^^^v>>v>^vv<v^>>^v^^<><<<<<^>^v^<^<^^>^vv<^>v^^v^<>v<><v>v^v>vvv><><<><>vv<vvv^v>^^>^^^<><^>^^^>v<vvvv<>vv<v<v^^>><>v<>>v^>v^^vv^>v>>><v<<<<v<^v>><^^>^v^v<v^v^^^vvv>>>vv<^>><<<^>><^<^>^<^>^>>v^<^<>^<^^<><vvv^^<>^<>>><<v>^<^<v<<><^<<^><^^>vv<>^^><v^v<vv<^<vvv<<^>v^>>v>>>v<<^vv^<><>>>^^<^v^>>^>>><<v<<^<vv><^<>^>>^v>>><^^^<<<vv<<v<v>^vv><><<>^^^<>^<vv^<^<<v>^^><vv>><>>>^>vv>^<^<>>^<^^><v>v^><v>vv><><>>><><<^^v<<^v<v>vv<><><<^v>^v<>^<^^^v^>^<^><^v>v>^v<>><^^v^^^^^<><v<>>vvv<v^^<>v>>>>^<<><^v>vv>>^^><<><><^^^<^<^<<^v>^^^><v>>>>><<v<v>v^^^<>>v<vv<^<>v^^^v<><^>v>><<><>v<^><<>>><>v>^<>>^>v^v<<<<>^<v^vv^>vv<<><v^vv<v<v<<>>>>>vv<><>^<^v>vv^<<v<^v^^<<^<<^^v^>>><<>^<>><^>>><v<>><<>^^>><<<^^^^^v>>^<<>>vvvv<^v<v^^<^>^vv<vv<>v<<<^><>>>>vv^<^v>v<^<>^v>>^<^^v^>>><>^^<^v>>v<<>vv<vvvv<>vv>^><>v^<>^<<^vv<v^^v<vvvv><^>>^v^>^^<<<^>>^^>^<^^<^<<<v^<^^v<<vv^<<^^^vv><v<vv^>v^^v<v>^^<^v<^>>><<>vv<<^><<v^v^^^v<vv>^>vv<^>>^<v<>vv>>>^>>><<v<^<>^<<<>>^<<>><^<<^^^>>v^^>v<<<>v>v>v<v<^>^<>>>^vvv><<^^<<><v<><^<v<vvv>v>>>>vv^^v<v<^<^><v>^v<<v<vv>>v>v<<<<><<>vv<><^^^<>>v<v<vvv><v^<vv^>>><v^^<>>>^^<><^<^v^><vv>>^^v>^<<v^>v>^^>^v^<v<^<v^v><>>v^^<^v^^<<>^^>v^^>><<<<^<^^v>^^v>v<<vv^^vv>^>v^<v<v><>vv>>^<v^v^<v<^>^v>v^^>vvvvv<v><<>vv>vvvvvv>>v>>^^^<v>vv^^><<v>>v^^^^v>vv>v<^v>>>>^>^><v^>^<v<vv>v>^>><v>><<>>^vv<vv^^<^^>>>>><><<^<v<><<v>^><^vv^v>>>>>v>^>^<vv>^v^>v<^v^<^<<vv<<>v<>>^vv<<>^v^v>><><<>>v^^<<>^^<v><>v<<^^<^^>^^>^<^><>>v<>>^^<^>><<<v<>>>^v^>v>v<<^^<<^>v<v^>>v^^v^^<<>^v>v><v^>v<^^>^<vv><vv^<>v<><^<<<vv<<v>v<^<<<<^^>v^v^^><<><^^^<v>v^^>>>vvv><>vv<>>^^v^v<<^>v^^v^>vv>^<<v<^<v^>^^<<v<^^>^v^^<^^v<<>>vv<^>>^><><>v>>v<>^<v^^><<>>>
\ No newline at end of file
diff --git a/2015/day03/main.go b/2015/day03/main.go
new file mode 100644
index 0000000..e6c99fe
--- /dev/null
+++ b/2015/day03/main.go
@@ -0,0 +1,60 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+)
+
+func main() {
+	var input []string
+	var readInp string
+	for {
+		_, err := fmt.Scan(&readInp)
+		if err != nil {
+			if err != io.EOF {
+				log.Fatal(err)
+			}
+			break
+		}
+		input = append(input, readInp)
+	}
+
+	santaResults := santa(input, 0, 2)
+	santaResults["0;0"] = 1
+	roboResults := santa(input, 1, 2)
+	for i, k := range roboResults {
+		santaResults[i] += k
+	}
+	fmt.Printf("Santa delivered presents to %d houses\n", len(santaResults))
+}
+
+func santa(input []string, offset, numWorkers int) map[string]int {
+	var numDir int
+	houses := make(map[string]int)
+	var currX, currY int
+	for _, k := range input {
+		for _, r := range k {
+			if numDir >= offset {
+				if (numDir+offset)%(numWorkers) == 0 {
+					// We've waited, now start visiting
+					switch r {
+					case '^':
+						currY--
+					case '>':
+						currX++
+					case 'v':
+						currY++
+					case '<':
+						currX--
+					}
+					houseCoords := fmt.Sprintf("%d;%d", currX, currY)
+					houses[houseCoords]++
+				}
+			}
+			numDir++
+		}
+	}
+
+	return houses
+}
\ No newline at end of file
diff --git a/2015/day03/problem b/2015/day03/problem
new file mode 100644
index 0000000..f456e3c
--- /dev/null
+++ b/2015/day03/problem
@@ -0,0 +1,75 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 3: Perfectly Spherical Houses in a Vacuum ---
+
+   Santa is delivering presents to an infinite two-dimensional grid of houses.
+
+   He begins by delivering a present to the house at his starting location, and then an elf at the
+   North Pole calls him via radio and tells him where to move next. Moves are always exactly one
+   house to the north (^), south (v), east (>), or west (<). After each move, he delivers another
+   present to the house at his new location.
+
+   However, the elf back at the north pole has had a little too much eggnog, and so his directions
+   are a little off, and Santa ends up visiting some houses more than once. How many houses
+   receive at least one present?
+
+   For example:
+
+     • > delivers presents to 2 houses: one at the starting location, and one to the east.
+     • ^>v< delivers presents to 4 houses in a square, including twice to the house at his
+       starting/ending location.
+     • ^v^v^v^v^v delivers a bunch of presents to some very lucky children at only 2 houses.
+
+   Your puzzle answer was 2572.
+
+--- Part Two ---
+
+   The next year, to speed up the process, Santa creates a robot version of himself, Robo-Santa,
+   to deliver presents with him.
+
+   Santa and Robo-Santa start at the same location (delivering two presents to the same starting
+   house), then take turns moving based on instructions from the elf, who is eggnoggedly reading
+   from the same script as the previous year.
+
+   This year, how many houses receive at least one present?
+
+   For example:
+
+     • ^v delivers presents to 3 houses, because Santa goes north, and then Robo-Santa goes south.
+     • ^>v< now delivers presents to 3 houses, and Santa and Robo-Santa end up back where they
+       started.
+     • ^v^v^v^v^v now delivers presents to 11 houses, with Santa going one direction and
+       Robo-Santa going the other.
+
+   Your puzzle answer was 2631.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/3/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Perfectly+Spherical+Houses+in+a+Vacuum%22+%2D+Day+3+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F3&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F3
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F3&title=I%27ve+completed+%22Perfectly+Spherical+Houses+in+a+Vacuum%22+%2D+Day+3+%2D+Advent+of+Code
diff --git a/2015/day04/input b/2015/day04/input
new file mode 100644
index 0000000..203cf7c
--- /dev/null
+++ b/2015/day04/input
@@ -0,0 +1 @@
+yzbqklnj
\ No newline at end of file
diff --git a/2015/day04/main.go b/2015/day04/main.go
new file mode 100644
index 0000000..1eb8610
--- /dev/null
+++ b/2015/day04/main.go
@@ -0,0 +1,48 @@
+package main
+
+import (
+	"crypto/md5"
+	"fmt"
+	"io"
+	"log"
+	"strconv"
+)
+
+func main() {
+	var readInp string
+	for {
+		_, err := fmt.Scan(&readInp)
+		if err != nil {
+			if err != io.EOF {
+				log.Fatal(err)
+			}
+			break
+		}
+	}
+	firstCoin := searchChunk(readInp, 0, 1000000000)
+	fmt.Printf("\n%s%d :: %d\n", readInp, firstCoin, firstCoin)
+}
+
+func searchChunk(key string, start, end int) int {
+	// So we know it's still running
+	for i := start; i <= end; i++ {
+		coin := key + strconv.Itoa(i)
+		coinMd5 := fmt.Sprintf("%x", md5.Sum([]byte(coin)))
+		if isCoin(coinMd5, "000000") {
+			return i
+		}
+	}
+	return -1
+}
+
+func isCoin(s string, moneyMaker string) bool {
+	if len(s) < len(moneyMaker) {
+		return false
+	}
+	for i := 0; i < len(moneyMaker); i++ {
+		if s[i] != moneyMaker[i] {
+			return false
+		}
+	}
+	return true
+}
\ No newline at end of file
diff --git a/2015/day04/problem b/2015/day04/problem
new file mode 100644
index 0000000..f53aa0a
--- /dev/null
+++ b/2015/day04/problem
@@ -0,0 +1,61 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 4: The Ideal Stocking Stuffer ---
+
+   Santa needs help mining some AdventCoins (very similar to bitcoins) to use as gifts for all the
+   economically forward-thinking little girls and boys.
+
+   To do this, he needs to find MD5 hashes which, in hexadecimal, start with at least five zeroes.
+   The input to the MD5 hash is some secret key (your puzzle input, given below) followed by a
+   number in decimal. To mine AdventCoins, you must find Santa the lowest positive number (no
+   leading zeroes: 1, 2, 3, ...) that produces such a hash.
+
+   For example:
+
+     • If your secret key is abcdef, the answer is 609043, because the MD5 hash of abcdef609043
+       starts with five zeroes (000001dbbfa...), and it is the lowest such number to do so.
+     • If your secret key is pqrstuv, the lowest number it combines with to make an MD5 hash
+       starting with five zeroes is 1048970; that is, the MD5 hash of pqrstuv1048970 looks like
+       000006136ef....
+
+   Your puzzle answer was 282749.
+
+--- Part Two ---
+
+   Now find one that starts with six zeroes.
+
+   Your puzzle answer was 9962624.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   Your puzzle input was yzbqklnj.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . https://en.wikipedia.org/wiki/Bitcoin#Mining
+   . https://en.wikipedia.org/wiki/Bitcoin
+   . https://en.wikipedia.org/wiki/MD5
+   . https://en.wikipedia.org/wiki/Hexadecimal
+   . http://adventofcode.com/
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22The+Ideal+Stocking+Stuffer%22+%2D+Day+4+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F4&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F4
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F4&title=I%27ve+completed+%22The+Ideal+Stocking+Stuffer%22+%2D+Day+4+%2D+Advent+of+Code
diff --git a/2015/day05/input b/2015/day05/input
new file mode 100644
index 0000000..a9b6e77
--- /dev/null
+++ b/2015/day05/input
@@ -0,0 +1,1000 @@
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diff --git a/2015/day05/main.go b/2015/day05/main.go
new file mode 100644
index 0000000..69fdbe0
--- /dev/null
+++ b/2015/day05/main.go
@@ -0,0 +1,82 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+)
+
+func main() {
+	var input []string
+	var readInp string
+	for {
+		_, err := fmt.Scan(&readInp)
+		if err != nil {
+			if err != io.EOF {
+				log.Fatal(err)
+			}
+			break
+		}
+		input = append(input, readInp)
+	}
+
+	var numNice int
+	for _, k := range input {
+		if isNicePt2(k) {
+			numNice++
+		}
+	}
+	fmt.Printf("There are %d nice strings (out of %d total)\n", numNice, len(input))
+}
+
+func isNicePt1(s string) bool {
+	var prev byte
+	var numVowels int
+	var hasDouble bool
+	for i := range s {
+		if s[i] == 'b' && prev == 'a' {
+			return false
+		} else if s[i] == 'd' && prev == 'c' {
+			return false
+		} else if s[i] == 'q' && prev == 'p' {
+			return false
+		} else if s[i] == 'y' && prev == 'x' {
+			return false
+		} else if s[i] == 'a' || s[i] == 'e' || s[i] == 'i' || s[i] == 'o' || s[i] == 'u' {
+			numVowels++
+		}
+		if prev == s[i] {
+			hasDouble = true
+		}
+		prev = s[i]
+	}
+	return (numVowels > 2 && hasDouble)
+}
+
+func isNicePt2(s string) bool {
+	var splitRepeat bool
+	var double bool
+	for i := range s {
+		if i > 0 {
+			double = double || hasDouble(s[i-1], s[i], s[i+1:])
+		}
+		if i > 1 {
+			splitRepeat = splitRepeat || (s[i-2] == s[i])
+		}
+		if double && splitRepeat {
+			return true
+		}
+	}
+	return false
+}
+
+func hasDouble(b1, b2 byte, s string) bool {
+	var prev byte
+	for i := range s {
+		if prev == b1 && s[i] == b2 {
+			return true
+		}
+		prev = s[i]
+	}
+	return false
+}
diff --git a/2015/day05/problem b/2015/day05/problem
new file mode 100644
index 0000000..b872a1e
--- /dev/null
+++ b/2015/day05/problem
@@ -0,0 +1,85 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 5: Doesn't He Have Intern-Elves For This? ---
+
+   Santa needs help figuring out which strings in his text file are naughty or nice.
+
+   A nice string is one with all of the following properties:
+
+     • It contains at least three vowels (aeiou only), like aei, xazegov, or aeiouaeiouaeiou.
+     • It contains at least one letter that appears twice in a row, like xx, abcdde (dd), or
+       aabbccdd (aa, bb, cc, or dd).
+     • It does not contain the strings ab, cd, pq, or xy, even if they are part of one of the
+       other requirements.
+
+   For example:
+
+     • ugknbfddgicrmopn is nice because it has at least three vowels (u...i...o...), a double
+       letter (...dd...), and none of the disallowed substrings.
+     • aaa is nice because it has at least three vowels and a double letter, even though the
+       letters used by different rules overlap.
+     • jchzalrnumimnmhp is naughty because it has no double letter.
+     • haegwjzuvuyypxyu is naughty because it contains the string xy.
+     • dvszwmarrgswjxmb is naughty because it contains only one vowel.
+
+   How many strings are nice?
+
+   Your puzzle answer was 255.
+
+--- Part Two ---
+
+   Realizing the error of his ways, Santa has switched to a better model of determining whether a
+   string is naughty or nice. None of the old rules apply, as they are all clearly ridiculous.
+
+   Now, a nice string is one with all of the following properties:
+
+     • It contains a pair of any two letters that appears at least twice in the string without
+       overlapping, like xyxy (xy) or aabcdefgaa (aa), but not like aaa (aa, but it overlaps).
+     • It contains at least one letter which repeats with exactly one letter between them, like
+       xyx, abcdefeghi (efe), or even aaa.
+
+   For example:
+
+     • qjhvhtzxzqqjkmpb is nice because is has a pair that appears twice (qj) and a letter that
+       repeats with exactly one letter between them (zxz).
+     • xxyxx is nice because it has a pair that appears twice and a letter that repeats with one
+       between, even though the letters used by each rule overlap.
+     • uurcxstgmygtbstg is naughty because it has a pair (tg) but no repeat with a single letter
+       between them.
+     • ieodomkazucvgmuy is naughty because it has a repeating letter with one between (odo), but
+       no pair that appears twice.
+
+   How many strings are nice under these new rules?
+
+   Your puzzle answer was 55.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/5/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Doesn%27t+He+Have+Intern%2DElves+For+This%3F%22+%2D+Day+5+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F5&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F5
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F5&title=I%27ve+completed+%22Doesn%27t+He+Have+Intern%2DElves+For+This%3F%22+%2D+Day+5+%2D+Advent+of+Code
diff --git a/2015/day06/input b/2015/day06/input
new file mode 100644
index 0000000..c4357c6
--- /dev/null
+++ b/2015/day06/input
@@ -0,0 +1,300 @@
+turn on 887,9 through 959,629
+turn on 454,398 through 844,448
+turn off 539,243 through 559,965
+turn off 370,819 through 676,868
+turn off 145,40 through 370,997
+turn off 301,3 through 808,453
+turn on 351,678 through 951,908
+toggle 720,196 through 897,994
+toggle 831,394 through 904,860
+toggle 753,664 through 970,926
+turn off 150,300 through 213,740
+turn on 141,242 through 932,871
+toggle 294,259 through 474,326
+toggle 678,333 through 752,957
+toggle 393,804 through 510,976
+turn off 6,964 through 411,976
+turn off 33,572 through 978,590
+turn on 579,693 through 650,978
+turn on 150,20 through 652,719
+turn off 782,143 through 808,802
+turn off 240,377 through 761,468
+turn off 899,828 through 958,967
+turn on 613,565 through 952,659
+turn on 295,36 through 964,978
+toggle 846,296 through 969,528
+turn off 211,254 through 529,491
+turn off 231,594 through 406,794
+turn off 169,791 through 758,942
+turn on 955,440 through 980,477
+toggle 944,498 through 995,928
+turn on 519,391 through 605,718
+toggle 521,303 through 617,366
+turn off 524,349 through 694,791
+toggle 391,87 through 499,792
+toggle 562,527 through 668,935
+turn off 68,358 through 857,453
+toggle 815,811 through 889,828
+turn off 666,61 through 768,87
+turn on 27,501 through 921,952
+turn on 953,102 through 983,471
+turn on 277,552 through 451,723
+turn off 64,253 through 655,960
+turn on 47,485 through 734,977
+turn off 59,119 through 699,734
+toggle 407,898 through 493,955
+toggle 912,966 through 949,991
+turn on 479,990 through 895,990
+toggle 390,589 through 869,766
+toggle 593,903 through 926,943
+toggle 358,439 through 870,528
+turn off 649,410 through 652,875
+turn on 629,834 through 712,895
+toggle 254,555 through 770,901
+toggle 641,832 through 947,850
+turn on 268,448 through 743,777
+turn off 512,123 through 625,874
+turn off 498,262 through 930,811
+turn off 835,158 through 886,242
+toggle 546,310 through 607,773
+turn on 501,505 through 896,909
+turn off 666,796 through 817,924
+toggle 987,789 through 993,809
+toggle 745,8 through 860,693
+toggle 181,983 through 731,988
+turn on 826,174 through 924,883
+turn on 239,228 through 843,993
+turn on 205,613 through 891,667
+toggle 867,873 through 984,896
+turn on 628,251 through 677,681
+toggle 276,956 through 631,964
+turn on 78,358 through 974,713
+turn on 521,360 through 773,597
+turn off 963,52 through 979,502
+turn on 117,151 through 934,622
+toggle 237,91 through 528,164
+turn on 944,269 through 975,453
+toggle 979,460 through 988,964
+turn off 440,254 through 681,507
+toggle 347,100 through 896,785
+turn off 329,592 through 369,985
+turn on 931,960 through 979,985
+toggle 703,3 through 776,36
+toggle 798,120 through 908,550
+turn off 186,605 through 914,709
+turn off 921,725 through 979,956
+toggle 167,34 through 735,249
+turn on 726,781 through 987,936
+toggle 720,336 through 847,756
+turn on 171,630 through 656,769
+turn off 417,276 through 751,500
+toggle 559,485 through 584,534
+turn on 568,629 through 690,873
+toggle 248,712 through 277,988
+toggle 345,594 through 812,723
+turn off 800,108 through 834,618
+turn off 967,439 through 986,869
+turn on 842,209 through 955,529
+turn on 132,653 through 357,696
+turn on 817,38 through 973,662
+turn off 569,816 through 721,861
+turn on 568,429 through 945,724
+turn on 77,458 through 844,685
+turn off 138,78 through 498,851
+turn on 136,21 through 252,986
+turn off 2,460 through 863,472
+turn on 172,81 through 839,332
+turn on 123,216 through 703,384
+turn off 879,644 through 944,887
+toggle 227,491 through 504,793
+toggle 580,418 through 741,479
+toggle 65,276 through 414,299
+toggle 482,486 through 838,931
+turn off 557,768 through 950,927
+turn off 615,617 through 955,864
+turn on 859,886 through 923,919
+turn on 391,330 through 499,971
+toggle 521,835 through 613,847
+turn on 822,787 through 989,847
+turn on 192,142 through 357,846
+turn off 564,945 through 985,945
+turn off 479,361 through 703,799
+toggle 56,481 through 489,978
+turn off 632,991 through 774,998
+toggle 723,526 through 945,792
+turn on 344,149 through 441,640
+toggle 568,927 through 624,952
+turn on 621,784 through 970,788
+toggle 665,783 through 795,981
+toggle 386,610 through 817,730
+toggle 440,399 through 734,417
+toggle 939,201 through 978,803
+turn off 395,883 through 554,929
+turn on 340,309 through 637,561
+turn off 875,147 through 946,481
+turn off 945,837 through 957,922
+turn off 429,982 through 691,991
+toggle 227,137 through 439,822
+toggle 4,848 through 7,932
+turn off 545,146 through 756,943
+turn on 763,863 through 937,994
+turn on 232,94 through 404,502
+turn off 742,254 through 930,512
+turn on 91,931 through 101,942
+toggle 585,106 through 651,425
+turn on 506,700 through 567,960
+turn off 548,44 through 718,352
+turn off 194,827 through 673,859
+turn off 6,645 through 509,764
+turn off 13,230 through 821,361
+turn on 734,629 through 919,631
+toggle 788,552 through 957,972
+toggle 244,747 through 849,773
+turn off 162,553 through 276,887
+turn off 569,577 through 587,604
+turn off 799,482 through 854,956
+turn on 744,535 through 909,802
+toggle 330,641 through 396,986
+turn off 927,458 through 966,564
+toggle 984,486 through 986,913
+toggle 519,682 through 632,708
+turn on 984,977 through 989,986
+toggle 766,423 through 934,495
+turn on 17,509 through 947,718
+turn on 413,783 through 631,903
+turn on 482,370 through 493,688
+turn on 433,859 through 628,938
+turn off 769,549 through 945,810
+turn on 178,853 through 539,941
+turn off 203,251 through 692,433
+turn off 525,638 through 955,794
+turn on 169,70 through 764,939
+toggle 59,352 through 896,404
+toggle 143,245 through 707,320
+turn off 103,35 through 160,949
+toggle 496,24 through 669,507
+turn off 581,847 through 847,903
+turn on 689,153 through 733,562
+turn on 821,487 through 839,699
+turn on 837,627 through 978,723
+toggle 96,748 through 973,753
+toggle 99,818 through 609,995
+turn on 731,193 through 756,509
+turn off 622,55 through 813,365
+turn on 456,490 through 576,548
+turn on 48,421 through 163,674
+turn off 853,861 through 924,964
+turn off 59,963 through 556,987
+turn on 458,710 through 688,847
+toggle 12,484 through 878,562
+turn off 241,964 through 799,983
+turn off 434,299 through 845,772
+toggle 896,725 through 956,847
+turn on 740,289 through 784,345
+turn off 395,840 through 822,845
+turn on 955,224 through 996,953
+turn off 710,186 through 957,722
+turn off 485,949 through 869,985
+turn on 848,209 through 975,376
+toggle 221,241 through 906,384
+turn on 588,49 through 927,496
+turn on 273,332 through 735,725
+turn on 505,962 through 895,962
+toggle 820,112 through 923,143
+turn on 919,792 through 978,982
+toggle 489,461 through 910,737
+turn off 202,642 through 638,940
+turn off 708,953 through 970,960
+toggle 437,291 through 546,381
+turn on 409,358 through 837,479
+turn off 756,279 through 870,943
+turn off 154,657 through 375,703
+turn off 524,622 through 995,779
+toggle 514,221 through 651,850
+toggle 808,464 through 886,646
+toggle 483,537 through 739,840
+toggle 654,769 through 831,825
+turn off 326,37 through 631,69
+turn off 590,570 through 926,656
+turn off 881,913 through 911,998
+turn on 996,102 through 998,616
+turn off 677,503 through 828,563
+turn on 860,251 through 877,441
+turn off 964,100 through 982,377
+toggle 888,403 through 961,597
+turn off 632,240 through 938,968
+toggle 731,176 through 932,413
+turn on 5,498 through 203,835
+turn on 819,352 through 929,855
+toggle 393,813 through 832,816
+toggle 725,689 through 967,888
+turn on 968,950 through 969,983
+turn off 152,628 through 582,896
+turn off 165,844 through 459,935
+turn off 882,741 through 974,786
+turn off 283,179 through 731,899
+toggle 197,366 through 682,445
+turn on 106,309 through 120,813
+toggle 950,387 through 967,782
+turn off 274,603 through 383,759
+turn off 155,665 through 284,787
+toggle 551,871 through 860,962
+turn off 30,826 through 598,892
+toggle 76,552 through 977,888
+turn on 938,180 through 994,997
+toggle 62,381 through 993,656
+toggle 625,861 through 921,941
+turn on 685,311 through 872,521
+turn on 124,934 through 530,962
+turn on 606,379 through 961,867
+turn off 792,735 through 946,783
+turn on 417,480 through 860,598
+toggle 178,91 through 481,887
+turn off 23,935 through 833,962
+toggle 317,14 through 793,425
+turn on 986,89 through 999,613
+turn off 359,201 through 560,554
+turn off 729,494 through 942,626
+turn on 204,143 through 876,610
+toggle 474,97 through 636,542
+turn off 902,924 through 976,973
+turn off 389,442 through 824,638
+turn off 622,863 through 798,863
+turn on 840,622 through 978,920
+toggle 567,374 through 925,439
+turn off 643,319 through 935,662
+toggle 185,42 through 294,810
+turn on 47,124 through 598,880
+toggle 828,303 through 979,770
+turn off 174,272 through 280,311
+turn off 540,50 through 880,212
+turn on 141,994 through 221,998
+turn on 476,695 through 483,901
+turn on 960,216 through 972,502
+toggle 752,335 through 957,733
+turn off 419,713 through 537,998
+toggle 772,846 through 994,888
+turn on 881,159 through 902,312
+turn off 537,651 through 641,816
+toggle 561,947 through 638,965
+turn on 368,458 through 437,612
+turn on 290,149 through 705,919
+turn on 711,918 through 974,945
+toggle 916,242 through 926,786
+toggle 522,272 through 773,314
+turn on 432,897 through 440,954
+turn off 132,169 through 775,380
+toggle 52,205 through 693,747
+toggle 926,309 through 976,669
+turn off 838,342 through 938,444
+turn on 144,431 through 260,951
+toggle 780,318 through 975,495
+turn off 185,412 through 796,541
+turn on 879,548 through 892,860
+turn on 294,132 through 460,338
+turn on 823,500 through 899,529
+turn off 225,603 through 483,920
+toggle 717,493 through 930,875
+toggle 534,948 through 599,968
+turn on 522,730 through 968,950
+turn off 102,229 through 674,529
diff --git a/2015/day06/main.go b/2015/day06/main.go
new file mode 100644
index 0000000..00c78d6
--- /dev/null
+++ b/2015/day06/main.go
@@ -0,0 +1,70 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	var input []string
+	var readInp string
+	for {
+		_, err := fmt.Scan(&readInp)
+		if err != nil {
+			if err != io.EOF {
+				log.Fatal(err)
+			}
+			break
+		}
+		input = append(input, readInp)
+	}
+
+	var lights [][]int
+	for i := 0; i < 1000; i++ {
+		lights = append(lights, make([]int, 1000))
+	}
+	for i := range input {
+		if input[i] == "on" || input[i] == "off" || input[i] == "toggle" {
+			stX, stY := parseLocations(input[i+1])
+			endX, endY := parseLocations(input[i+3])
+			for ix := stX; ix <= endX; ix++ {
+				for iy := stY; iy <= endY; iy++ {
+					if input[i] == "on" {
+						lights[ix][iy]++
+					} else if input[i] == "off" {
+						if lights[ix][iy] > 0 {
+							lights[ix][iy]--
+						}
+					} else if input[i] == "toggle" {
+						lights[ix][iy] += 2
+					}
+				}
+			}
+		}
+	}
+	var brightness int
+	for i := 0; i < 1000; i++ {
+		for j := 0; j < 1000; j++ {
+			brightness += lights[i][j]
+		}
+	}
+	fmt.Printf("Brightness: %d\n", brightness)
+}
+
+func parseLocations(s string) (int, int) {
+	dirSplit := strings.Split(s, ",")
+	return assertAtoi(dirSplit[0]), assertAtoi(dirSplit[1])
+}
+
+func assertAtoi(s string) int {
+	ret, err := strconv.Atoi(s)
+	if err != nil {
+		fmt.Println("Error in Atoi: " + s)
+		os.Exit(1)
+	}
+	return ret
+}
diff --git a/2015/day06/problem b/2015/day06/problem
new file mode 100644
index 0000000..7135358
--- /dev/null
+++ b/2015/day06/problem
@@ -0,0 +1,84 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 6: Probably a Fire Hazard ---
+
+   Because your neighbors keep defeating you in the holiday house decorating contest year after
+   year, you've decided to deploy one million lights in a 1000x1000 grid.
+
+   Furthermore, because you've been especially nice this year, Santa has mailed you instructions
+   on how to display the ideal lighting configuration.
+
+   Lights in your grid are numbered from 0 to 999 in each direction; the lights at each corner are
+   at 0,0, 0,999, 999,999, and 999,0. The instructions include whether to turn on, turn off, or
+   toggle various inclusive ranges given as coordinate pairs. Each coordinate pair represents
+   opposite corners of a rectangle, inclusive; a coordinate pair like 0,0 through 2,2 therefore
+   refers to 9 lights in a 3x3 square. The lights all start turned off.
+
+   To defeat your neighbors this year, all you have to do is set up your lights by doing the
+   instructions Santa sent you in order.
+
+   For example:
+
+     • turn on 0,0 through 999,999 would turn on (or leave on) every light.
+     • toggle 0,0 through 999,0 would toggle the first line of 1000 lights, turning off the ones
+       that were on, and turning on the ones that were off.
+     • turn off 499,499 through 500,500 would turn off (or leave off) the middle four lights.
+
+   After following the instructions, how many lights are lit?
+
+   Your puzzle answer was 377891.
+
+--- Part Two ---
+
+   You just finish implementing your winning light pattern when you realize you mistranslated
+   Santa's message from Ancient Nordic Elvish.
+
+   The light grid you bought actually has individual brightness controls; each light can have a
+   brightness of zero or more. The lights all start at zero.
+
+   The phrase turn on actually means that you should increase the brightness of those lights by 1.
+
+   The phrase turn off actually means that you should decrease the brightness of those lights by
+   1, to a minimum of zero.
+
+   The phrase toggle actually means that you should increase the brightness of those lights by 2.
+
+   What is the total brightness of all lights combined after following Santa's instructions?
+
+   For example:
+
+     • turn on 0,0 through 0,0 would increase the total brightness by 1.
+     • toggle 0,0 through 999,999 would increase the total brightness by 2000000.
+
+   Your puzzle answer was 14110788.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/6/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Probably+a+Fire+Hazard%22+%2D+Day+6+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F6&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F6
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F6&title=I%27ve+completed+%22Probably+a+Fire+Hazard%22+%2D+Day+6+%2D+Advent+of+Code
diff --git a/2015/day07/input b/2015/day07/input
new file mode 100644
index 0000000..de11a72
--- /dev/null
+++ b/2015/day07/input
@@ -0,0 +1,339 @@
+lf AND lq -> ls
+iu RSHIFT 1 -> jn
+bo OR bu -> bv
+gj RSHIFT 1 -> hc
+et RSHIFT 2 -> eu
+bv AND bx -> by
+is OR it -> iu
+b OR n -> o
+gf OR ge -> gg
+NOT kt -> ku
+ea AND eb -> ed
+kl OR kr -> ks
+hi AND hk -> hl
+au AND av -> ax
+lf RSHIFT 2 -> lg
+dd RSHIFT 3 -> df
+eu AND fa -> fc
+df AND dg -> di
+ip LSHIFT 15 -> it
+NOT el -> em
+et OR fe -> ff
+fj LSHIFT 15 -> fn
+t OR s -> u
+ly OR lz -> ma
+ko AND kq -> kr
+NOT fx -> fy
+et RSHIFT 1 -> fm
+eu OR fa -> fb
+dd RSHIFT 2 -> de
+NOT go -> gp
+kb AND kd -> ke
+hg OR hh -> hi
+jm LSHIFT 1 -> kg
+NOT cn -> co
+jp RSHIFT 2 -> jq
+jp RSHIFT 5 -> js
+1 AND io -> ip
+eo LSHIFT 15 -> es
+1 AND jj -> jk
+g AND i -> j
+ci RSHIFT 3 -> ck
+gn AND gp -> gq
+fs AND fu -> fv
+lj AND ll -> lm
+jk LSHIFT 15 -> jo
+iu RSHIFT 3 -> iw
+NOT ii -> ij
+1 AND cc -> cd
+bn RSHIFT 3 -> bp
+NOT gw -> gx
+NOT ft -> fu
+jn OR jo -> jp
+iv OR jb -> jc
+hv OR hu -> hw
+16076 -> b
+gj RSHIFT 5 -> gm
+hq AND hs -> ht
+dy RSHIFT 1 -> er
+ao OR an -> ap
+ld OR le -> lf
+bk LSHIFT 1 -> ce
+bz AND cb -> cc
+bi LSHIFT 15 -> bm
+il AND in -> io
+af AND ah -> ai
+as RSHIFT 1 -> bl
+lf RSHIFT 3 -> lh
+er OR es -> et
+NOT ax -> ay
+ci RSHIFT 1 -> db
+et AND fe -> fg
+lg OR lm -> ln
+k AND m -> n
+hz RSHIFT 2 -> ia
+kh LSHIFT 1 -> lb
+NOT ey -> ez
+NOT di -> dj
+dz OR ef -> eg
+lx -> a
+NOT iz -> ja
+gz LSHIFT 15 -> hd
+ce OR cd -> cf
+fq AND fr -> ft
+at AND az -> bb
+ha OR gz -> hb
+fp AND fv -> fx
+NOT gb -> gc
+ia AND ig -> ii
+gl OR gm -> gn
+0 -> c
+NOT ca -> cb
+bn RSHIFT 1 -> cg
+c LSHIFT 1 -> t
+iw OR ix -> iy
+kg OR kf -> kh
+dy OR ej -> ek
+km AND kn -> kp
+NOT fc -> fd
+hz RSHIFT 3 -> ib
+NOT dq -> dr
+NOT fg -> fh
+dy RSHIFT 2 -> dz
+kk RSHIFT 2 -> kl
+1 AND fi -> fj
+NOT hr -> hs
+jp RSHIFT 1 -> ki
+bl OR bm -> bn
+1 AND gy -> gz
+gr AND gt -> gu
+db OR dc -> dd
+de OR dk -> dl
+as RSHIFT 5 -> av
+lf RSHIFT 5 -> li
+hm AND ho -> hp
+cg OR ch -> ci
+gj AND gu -> gw
+ge LSHIFT 15 -> gi
+e OR f -> g
+fp OR fv -> fw
+fb AND fd -> fe
+cd LSHIFT 15 -> ch
+b RSHIFT 1 -> v
+at OR az -> ba
+bn RSHIFT 2 -> bo
+lh AND li -> lk
+dl AND dn -> do
+eg AND ei -> ej
+ex AND ez -> fa
+NOT kp -> kq
+NOT lk -> ll
+x AND ai -> ak
+jp OR ka -> kb
+NOT jd -> je
+iy AND ja -> jb
+jp RSHIFT 3 -> jr
+fo OR fz -> ga
+df OR dg -> dh
+gj RSHIFT 2 -> gk
+gj OR gu -> gv
+NOT jh -> ji
+ap LSHIFT 1 -> bj
+NOT ls -> lt
+ir LSHIFT 1 -> jl
+bn AND by -> ca
+lv LSHIFT 15 -> lz
+ba AND bc -> bd
+cy LSHIFT 15 -> dc
+ln AND lp -> lq
+x RSHIFT 1 -> aq
+gk OR gq -> gr
+NOT kx -> ky
+jg AND ji -> jj
+bn OR by -> bz
+fl LSHIFT 1 -> gf
+bp OR bq -> br
+he OR hp -> hq
+et RSHIFT 5 -> ew
+iu RSHIFT 2 -> iv
+gl AND gm -> go
+x OR ai -> aj
+hc OR hd -> he
+lg AND lm -> lo
+lh OR li -> lj
+da LSHIFT 1 -> du
+fo RSHIFT 2 -> fp
+gk AND gq -> gs
+bj OR bi -> bk
+lf OR lq -> lr
+cj AND cp -> cr
+hu LSHIFT 15 -> hy
+1 AND bh -> bi
+fo RSHIFT 3 -> fq
+NOT lo -> lp
+hw LSHIFT 1 -> iq
+dd RSHIFT 1 -> dw
+dt LSHIFT 15 -> dx
+dy AND ej -> el
+an LSHIFT 15 -> ar
+aq OR ar -> as
+1 AND r -> s
+fw AND fy -> fz
+NOT im -> in
+et RSHIFT 3 -> ev
+1 AND ds -> dt
+ec AND ee -> ef
+NOT ak -> al
+jl OR jk -> jm
+1 AND en -> eo
+lb OR la -> lc
+iu AND jf -> jh
+iu RSHIFT 5 -> ix
+bo AND bu -> bw
+cz OR cy -> da
+iv AND jb -> jd
+iw AND ix -> iz
+lf RSHIFT 1 -> ly
+iu OR jf -> jg
+NOT dm -> dn
+lw OR lv -> lx
+gg LSHIFT 1 -> ha
+lr AND lt -> lu
+fm OR fn -> fo
+he RSHIFT 3 -> hg
+aj AND al -> am
+1 AND kz -> la
+dy RSHIFT 5 -> eb
+jc AND je -> jf
+cm AND co -> cp
+gv AND gx -> gy
+ev OR ew -> ex
+jp AND ka -> kc
+fk OR fj -> fl
+dy RSHIFT 3 -> ea
+NOT bs -> bt
+NOT ag -> ah
+dz AND ef -> eh
+cf LSHIFT 1 -> cz
+NOT cv -> cw
+1 AND cx -> cy
+de AND dk -> dm
+ck AND cl -> cn
+x RSHIFT 5 -> aa
+dv LSHIFT 1 -> ep
+he RSHIFT 2 -> hf
+NOT bw -> bx
+ck OR cl -> cm
+bp AND bq -> bs
+as OR bd -> be
+he AND hp -> hr
+ev AND ew -> ey
+1 AND lu -> lv
+kk RSHIFT 3 -> km
+b AND n -> p
+NOT kc -> kd
+lc LSHIFT 1 -> lw
+km OR kn -> ko
+id AND if -> ig
+ih AND ij -> ik
+jr AND js -> ju
+ci RSHIFT 5 -> cl
+hz RSHIFT 1 -> is
+1 AND ke -> kf
+NOT gs -> gt
+aw AND ay -> az
+x RSHIFT 2 -> y
+ab AND ad -> ae
+ff AND fh -> fi
+ci AND ct -> cv
+eq LSHIFT 1 -> fk
+gj RSHIFT 3 -> gl
+u LSHIFT 1 -> ao
+NOT bb -> bc
+NOT hj -> hk
+kw AND ky -> kz
+as AND bd -> bf
+dw OR dx -> dy
+br AND bt -> bu
+kk AND kv -> kx
+ep OR eo -> eq
+he RSHIFT 1 -> hx
+ki OR kj -> kk
+NOT ju -> jv
+ek AND em -> en
+kk RSHIFT 5 -> kn
+NOT eh -> ei
+hx OR hy -> hz
+ea OR eb -> ec
+s LSHIFT 15 -> w
+fo RSHIFT 1 -> gh
+kk OR kv -> kw
+bn RSHIFT 5 -> bq
+NOT ed -> ee
+1 AND ht -> hu
+cu AND cw -> cx
+b RSHIFT 5 -> f
+kl AND kr -> kt
+iq OR ip -> ir
+ci RSHIFT 2 -> cj
+cj OR cp -> cq
+o AND q -> r
+dd RSHIFT 5 -> dg
+b RSHIFT 2 -> d
+ks AND ku -> kv
+b RSHIFT 3 -> e
+d OR j -> k
+NOT p -> q
+NOT cr -> cs
+du OR dt -> dv
+kf LSHIFT 15 -> kj
+NOT ac -> ad
+fo RSHIFT 5 -> fr
+hz OR ik -> il
+jx AND jz -> ka
+gh OR gi -> gj
+kk RSHIFT 1 -> ld
+hz RSHIFT 5 -> ic
+as RSHIFT 2 -> at
+NOT jy -> jz
+1 AND am -> an
+ci OR ct -> cu
+hg AND hh -> hj
+jq OR jw -> jx
+v OR w -> x
+la LSHIFT 15 -> le
+dh AND dj -> dk
+dp AND dr -> ds
+jq AND jw -> jy
+au OR av -> aw
+NOT bf -> bg
+z OR aa -> ab
+ga AND gc -> gd
+hz AND ik -> im
+jt AND jv -> jw
+z AND aa -> ac
+jr OR js -> jt
+hb LSHIFT 1 -> hv
+hf OR hl -> hm
+ib OR ic -> id
+fq OR fr -> fs
+cq AND cs -> ct
+ia OR ig -> ih
+dd OR do -> dp
+d AND j -> l
+ib AND ic -> ie
+as RSHIFT 3 -> au
+be AND bg -> bh
+dd AND do -> dq
+NOT l -> m
+1 AND gd -> ge
+y AND ae -> ag
+fo AND fz -> gb
+NOT ie -> if
+e AND f -> h
+x RSHIFT 3 -> z
+y OR ae -> af
+hf AND hl -> hn
+NOT h -> i
+NOT hn -> ho
+he RSHIFT 5 -> hh
diff --git a/2015/day07/main.go b/2015/day07/main.go
new file mode 100644
index 0000000..2df4165
--- /dev/null
+++ b/2015/day07/main.go
@@ -0,0 +1,114 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"strconv"
+	"strings"
+)
+
+var wires map[string]uint16
+
+func main() {
+	var input []string
+	var bldInput string
+	var readInp string
+	for {
+		_, err := fmt.Scan(&readInp)
+		if err != nil {
+			if err != io.EOF {
+				log.Fatal(err)
+			}
+			break
+		}
+		if strings.HasSuffix(bldInput, "->") {
+			bldInput = bldInput + " " + readInp
+			input = append(input, bldInput)
+			bldInput = ""
+			continue
+		}
+		if len(bldInput) > 0 {
+			bldInput += " "
+		}
+		bldInput = bldInput + readInp
+	}
+
+	wires = make(map[string]uint16)
+	var done bool
+	for !done {
+		for i := range input {
+			parsePts := strings.Split(input[i], " -> ")
+			inputs := parsePts[0]
+			output := parsePts[1]
+			if _, ok := getValue(output); ok {
+				// We've already done this one
+				continue
+			}
+			// What's up with these inputs?
+			inpParts := strings.Split(inputs, " ")
+			if len(inpParts) == 1 {
+				if val, ok := getValue(inpParts[0]); ok {
+					setValue(output, val)
+				} else {
+					continue
+				}
+			} else if len(inpParts) == 2 {
+				if val, ok := getValue(inpParts[1]); ok {
+					setValue(output, ^val)
+				} else {
+					continue
+				}
+			} else {
+				// All other gates
+				var inp1, inp2 uint16
+				if val, ok := getValue(inpParts[0]); ok {
+					inp1 = val
+				} else {
+					continue
+				}
+				if val, ok := getValue(inpParts[2]); ok {
+					inp2 = val
+				} else {
+					continue
+				}
+
+				if inpParts[1] == "RSHIFT" {
+					setValue(output, (inp1 >> inp2))
+				} else if inpParts[1] == "LSHIFT" {
+					setValue(output, (inp1 << inp2))
+				} else if inpParts[1] == "OR" {
+					setValue(output, (inp1 | inp2))
+				} else if inpParts[1] == "AND" {
+					setValue(output, (inp1 & inp2))
+				}
+			}
+			if len(wires) == len(input) {
+				done = true
+			}
+		}
+
+		if aWire, ok := wires["a"]; ok {
+			fmt.Printf("\"a\" value: %d\n", aWire)
+			done = true
+		}
+	}
+}
+
+func setValue(key string, val uint16) {
+	wires[key] = val
+}
+
+func getValue(input string) (uint16, bool) {
+	var ret uint16
+	var i int
+	var err error
+	if i, err = strconv.Atoi(input); err != nil {
+		if w, ok := wires[input]; ok {
+			return w, true
+		}
+		return wires[input], false
+	}
+	ret = uint16(i)
+	return ret, true
+}
\ No newline at end of file
diff --git a/2015/day07/problem b/2015/day07/problem
new file mode 100644
index 0000000..3d61605
--- /dev/null
+++ b/2015/day07/problem
@@ -0,0 +1,103 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 7: Some Assembly Required ---
+
+   This year, Santa brought little Bobby Tables a set of wires and bitwise logic gates!
+   Unfortunately, little Bobby is a little under the recommended age range, and he needs help
+   assembling the circuit.
+
+   Each wire has an identifier (some lowercase letters) and can carry a 16-bit signal (a number
+   from 0 to 65535). A signal is provided to each wire by a gate, another wire, or some specific
+   value. Each wire can only get a signal from one source, but can provide its signal to multiple
+   destinations. A gate provides no signal until all of its inputs have a signal.
+
+   The included instructions booklet describes how to connect the parts together: x AND y -> z
+   means to connect wires x and y to an AND gate, and then connect its output to wire z.
+
+   For example:
+
+     • 123 -> x means that the signal 123 is provided to wire x.
+     • x AND y -> z means that the bitwise AND of wire x and wire y is provided to wire z.
+     • p LSHIFT 2 -> q means that the value from wire p is left-shifted by 2 and then provided to
+       wire q.
+     • NOT e -> f means that the bitwise complement of the value from wire e is provided to wire
+       f.
+
+   Other possible gates include OR (bitwise OR) and RSHIFT (right-shift). If, for some reason,
+   you'd like to emulate the circuit instead, almost all programming languages (for example, C,
+   JavaScript, or Python) provide operators for these gates.
+
+   For example, here is a simple circuit:
+
+ 123 -> x
+ 456 -> y
+ x AND y -> d
+ x OR y -> e
+ x LSHIFT 2 -> f
+ y RSHIFT 2 -> g
+ NOT x -> h
+ NOT y -> i
+
+   After it is run, these are the signals on the wires:
+
+ d: 72
+ e: 507
+ f: 492
+ g: 114
+ h: 65412
+ i: 65079
+ x: 123
+ y: 456
+
+   In little Bobby's kit's instructions booklet (provided as your puzzle input), what signal is
+   ultimately provided to wire a?
+
+   Your puzzle answer was 16076.
+
+--- Part Two ---
+
+   Now, take the signal you got on wire a, override wire b to that signal, and reset the other
+   wires (including wire a). What new signal is ultimately provided to wire a?
+
+   Your puzzle answer was 2797.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . https://en.wikipedia.org/wiki/Bitwise_operation
+   . https://en.wikipedia.org/wiki/16-bit
+   . https://en.wikipedia.org/wiki/Bitwise_operation#AND
+   . https://en.wikipedia.org/wiki/Logical_shift
+   . https://en.wikipedia.org/wiki/Bitwise_operation#NOT
+   . https://en.wikipedia.org/wiki/Bitwise_operation#OR
+   . https://en.wikipedia.org/wiki/Logical_shift
+   . https://en.wikipedia.org/wiki/Bitwise_operations_in_C
+   . https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_Operators
+   . https://wiki.python.org/moin/BitwiseOperators
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/7/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Some+Assembly+Required%22+%2D+Day+7+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F7&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F7
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F7&title=I%27ve+completed+%22Some+Assembly+Required%22+%2D+Day+7+%2D+Advent+of+Code
diff --git a/2015/day08/input b/2015/day08/input
new file mode 100644
index 0000000..94538e7
--- /dev/null
+++ b/2015/day08/input
@@ -0,0 +1,300 @@
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diff --git a/2015/day08/main.go b/2015/day08/main.go
new file mode 100644
index 0000000..569447e
--- /dev/null
+++ b/2015/day08/main.go
@@ -0,0 +1,49 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"strings"
+)
+
+func main() {
+	var input []string
+	var readInp string
+	for {
+		_, err := fmt.Scan(&readInp)
+		if err != nil {
+			if err != io.EOF {
+				log.Fatal(err)
+			}
+			break
+		}
+		input = append(input, readInp)
+	}
+
+	var codeCount int
+	var stringCount int
+	for i := range input {
+		codeCount += len(input[i])
+		var skipChars int
+		fmt.Printf("%s -> %d\n", input[i], len(input[i]))
+		tmpInput := strings.Replace(input[i], "\\\"", "\"", -1)
+		fmt.Printf("%s -> %d\n", tmpInput, len(tmpInput))
+		tmpInput = strings.Replace(tmpInput, "\\\\", "\\", -1)
+		fmt.Printf("%s -> %d\n", tmpInput, len(tmpInput))
+		tmpInput = strings.TrimSuffix(strings.TrimPrefix(tmpInput, "\""), "\"")
+		fmt.Printf("%s -> %d\n", tmpInput, len(tmpInput))
+		// Now search for hex sequences
+		for j := range tmpInput {
+			if len(tmpInput) > j+3 {
+				if tmpInput[j] == '\\' && tmpInput[j+1] == 'x' {
+					skipChars += 3
+				}
+			}
+		}
+		fmt.Printf("Minus %d for hex\n", skipChars)
+		stringCount += len(tmpInput) - skipChars
+	}
+	fmt.Printf("Code: %d, String: %d\n", codeCount, stringCount)
+	fmt.Printf("Difference: %d\n", (codeCount - stringCount))
+}
\ No newline at end of file
diff --git a/2015/day08/problem b/2015/day08/problem
new file mode 100644
index 0000000..6f4ea4e
--- /dev/null
+++ b/2015/day08/problem
@@ -0,0 +1,95 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 8: Matchsticks ---
+
+   Space on the sleigh is limited this year, and so Santa will be bringing his list as a digital
+   copy. He needs to know how much space it will take up when stored.
+
+   It is common in many programming languages to provide a way to escape special characters in
+   strings. For example, C, JavaScript, Perl, Python, and even PHP handle special characters in
+   very similar ways.
+
+   However, it is important to realize the difference between the number of characters in the code
+   representation of the string literal and the number of characters in the in-memory string
+   itself.
+
+   For example:
+
+     • "" is 2 characters of code (the two double quotes), but the string contains zero
+       characters.
+     • "abc" is 5 characters of code, but 3 characters in the string data.
+     • "aaa\"aaa" is 10 characters of code, but the string itself contains six "a" characters and
+       a single, escaped quote character, for a total of 7 characters in the string data.
+     • "\x27" is 6 characters of code, but the string itself contains just one - an apostrophe
+       ('), escaped using hexadecimal notation.
+
+   Santa's list is a file that contains many double-quoted string literals, one on each line. The
+   only escape sequences used are \\ (which represents a single backslash), \" (which represents a
+   lone double-quote character), and \x plus two hexadecimal characters (which represents a single
+   character with that ASCII code).
+
+   Disregarding the whitespace in the file, what is the number of characters of code for string
+   literals minus the number of characters in memory for the values of the strings in total for
+   the entire file?
+
+   For example, given the four strings above, the total number of characters of string code (2 + 5
+   + 10 + 6 = 23) minus the total number of characters in memory for string values (0 + 3 + 7 + 1
+   = 11) is 23 - 11 = 12.
+
+   Your puzzle answer was 1350.
+
+--- Part Two ---
+
+   Now, let's go the other way. In addition to finding the number of characters of code, you
+   should now encode each code representation as a new string and find the number of characters of
+   the new encoded representation, including the surrounding double quotes.
+
+   For example:
+
+     • "" encodes to "\"\"", an increase from 2 characters to 6.
+     • "abc" encodes to "\"abc\"", an increase from 5 characters to 9.
+     • "aaa\"aaa" encodes to "\"aaa\\\"aaa\"", an increase from 10 characters to 16.
+     • "\x27" encodes to "\"\\x27\"", an increase from 6 characters to 11.
+
+   Your task is to find the total number of characters to represent the newly encoded strings
+   minus the number of characters of code in each original string literal. For example, for the
+   strings above, the total encoded length (6 + 9 + 16 + 11 = 42) minus the characters in the
+   original code representation (23, just like in the first part of this puzzle) is 42 - 23 = 19.
+
+   Your puzzle answer was 2085.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . https://en.wikipedia.org/wiki/Escape_sequences_in_C
+   . https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String
+   . http://perldoc.perl.org/perlop.html#Quote-and-Quote-like-Operators
+   . https://docs.python.org/2.0/ref/strings.html
+   . http://php.net/manual/en/language.types.string.php#language.types.string.syntax.double
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/8/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Matchsticks%22+%2D+Day+8+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F8&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F8
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F8&title=I%27ve+completed+%22Matchsticks%22+%2D+Day+8+%2D+Advent+of+Code
diff --git a/2015/day09/day9 b/2015/day09/day9
new file mode 100644
index 0000000..2220198
Binary files /dev/null and b/2015/day09/day9 differ
diff --git a/2015/day09/input b/2015/day09/input
new file mode 100644
index 0000000..34175b9
--- /dev/null
+++ b/2015/day09/input
@@ -0,0 +1,28 @@
+Tristram to AlphaCentauri = 34
+Tristram to Snowdin = 100
+Tristram to Tambi = 63
+Tristram to Faerun = 108
+Tristram to Norrath = 111
+Tristram to Straylight = 89
+Tristram to Arbre = 132
+AlphaCentauri to Snowdin = 4
+AlphaCentauri to Tambi = 79
+AlphaCentauri to Faerun = 44
+AlphaCentauri to Norrath = 147
+AlphaCentauri to Straylight = 133
+AlphaCentauri to Arbre = 74
+Snowdin to Tambi = 105
+Snowdin to Faerun = 95
+Snowdin to Norrath = 48
+Snowdin to Straylight = 88
+Snowdin to Arbre = 7
+Tambi to Faerun = 68
+Tambi to Norrath = 134
+Tambi to Straylight = 107
+Tambi to Arbre = 40
+Faerun to Norrath = 11
+Faerun to Straylight = 66
+Faerun to Arbre = 144
+Norrath to Straylight = 115
+Norrath to Arbre = 135
+Straylight to Arbre = 127
\ No newline at end of file
diff --git a/2015/day09/main.go b/2015/day09/main.go
new file mode 100644
index 0000000..d451066
--- /dev/null
+++ b/2015/day09/main.go
@@ -0,0 +1,166 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"strconv"
+	"strings"
+)
+
+var allTowns map[string]roads
+
+type roads map[string]int
+
+func main() {
+	allTowns = make(map[string]roads)
+	var input []string
+	var readInp, bldInput string
+	for {
+		_, err := fmt.Scan(&readInp)
+		if err != nil {
+			if err != io.EOF {
+				log.Fatal(err)
+			}
+			break
+		}
+
+		if strings.HasSuffix(bldInput, "=") {
+			bldInput = bldInput + " " + readInp
+			input = append(input, bldInput)
+			bldInput = ""
+			continue
+		}
+		if len(bldInput) > 0 {
+			bldInput += " "
+		}
+		bldInput = bldInput + readInp
+	}
+
+	for i := range input {
+		dirTowns := strings.Split(input[i], " to ")
+		secondPart := strings.Split(dirTowns[1], " = ")
+		town1 := dirTowns[0]
+		town2 := secondPart[0]
+		distance := mustAtoi(secondPart[1])
+		buildRoute(town1, town2, distance)
+	}
+
+	// All routes should be built, find the shortest
+	var shortestRoute []string
+	shortestDistance := -1
+	for i := range allTowns {
+		var visited []string
+		lastVisit := i
+		tripDistance := 0
+		for len(visited) < len(allTowns) {
+			var dist int
+			visited = append(visited, lastVisit)
+			lastVisit, dist = findShortest(lastVisit, visited)
+			if dist > 0 {
+				tripDistance += dist
+			}
+		}
+		if shortestDistance == -1 || tripDistance < shortestDistance {
+			shortestDistance = tripDistance
+			shortestRoute = visited
+		}
+	}
+
+	// Now find the longest
+	var longestRoute []string
+	longestDistance := -1
+	for i := range allTowns {
+		var visited []string
+		lastVisit := i
+		tripDistance := 0
+		for len(visited) < len(allTowns) {
+			var dist int
+			visited = append(visited, lastVisit)
+			lastVisit, dist = findLongest(lastVisit, visited)
+			if dist > 0 {
+				tripDistance += dist
+			}
+		}
+		if longestDistance == -1 || tripDistance > longestDistance {
+			longestDistance = tripDistance
+			longestRoute = visited
+		}
+	}
+
+	fmt.Println("Shortest Route:" + strconv.Itoa(shortestDistance))
+	fmt.Println(strings.Join(shortestRoute, "->"))
+	fmt.Println("Longest Route:" + strconv.Itoa(longestDistance))
+	fmt.Println(strings.Join(longestRoute, "->"))
+}
+
+func findShortest(from string, exclude []string) (string, int) {
+	var toTown string
+	shortest := -1
+	for j := range allTowns[from] {
+		var didIt bool
+		for ex := range exclude {
+			if j == exclude[ex] {
+				didIt = true
+				break
+			}
+		}
+		if didIt {
+			continue
+		}
+		// Find the quickest trip from here
+		if shortest == -1 || allTowns[from][j] < shortest {
+			shortest = allTowns[from][j]
+			toTown = j
+		}
+	}
+	return toTown, shortest
+}
+
+func findLongest(from string, exclude []string) (string, int) {
+	var toTown string
+	longest := -1
+	for j := range allTowns[from] {
+		var didIt bool
+		for ex := range exclude {
+			if j == exclude[ex] {
+				didIt = true
+				break
+			}
+		}
+		if didIt {
+			continue
+		}
+		// Find the longest trip from here
+		if longest == -1 || allTowns[from][j] > longest {
+			longest = allTowns[from][j]
+			toTown = j
+		}
+	}
+	return toTown, longest
+}
+
+func mustAtoi(i string) int {
+	var ret int
+	var err error
+	if ret, err = strconv.Atoi(i); err != nil {
+		fmt.Println("Tried to mustAtoi: " + i)
+		os.Exit(1)
+	}
+	return ret
+}
+
+func buildRoute(t1, t2 string, dist int) {
+	if _, ok := allTowns[t1]; !ok {
+		// Add this town
+		allTowns[t1] = make(map[string]int)
+	}
+	allTowns[t1][t2] = dist
+	// And the other direction
+	if _, ok := allTowns[t2]; !ok {
+		// Add this town
+		allTowns[t2] = make(map[string]int)
+	}
+	allTowns[t2][t1] = dist
+}
diff --git a/2015/day09/problem b/2015/day09/problem
new file mode 100644
index 0000000..c34e75f
--- /dev/null
+++ b/2015/day09/problem
@@ -0,0 +1,78 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 9: All in a Single Night ---
+
+   Every year, Santa manages to deliver all of his presents in a single night.
+
+   This year, however, he has some new locations to visit; his elves have provided him the
+   distances between every pair of locations. He can start and end at any two (different)
+   locations he wants, but he must visit each location exactly once. What is the shortest distance
+   he can travel to achieve this?
+
+   For example, given the following distances:
+
+ London to Dublin = 464
+ London to Belfast = 518
+ Dublin to Belfast = 141
+
+   The possible routes are therefore:
+
+ Dublin -> London -> Belfast = 982
+ London -> Dublin -> Belfast = 605
+ London -> Belfast -> Dublin = 659
+ Dublin -> Belfast -> London = 659
+ Belfast -> Dublin -> London = 605
+ Belfast -> London -> Dublin = 982
+
+   The shortest of these is London -> Dublin -> Belfast = 605, and so the answer is 605 in this
+   example.
+
+   What is the distance of the shortest route?
+
+   Your puzzle answer was 251.
+
+--- Part Two ---
+
+   The next year, just to show off, Santa decides to take the route with the longest distance
+   instead.
+
+   He can still start and end at any two (different) locations he wants, and he still must visit
+   each location exactly once.
+
+   For example, given the distances above, the longest route would be 982 via (for example) Dublin
+   -> London -> Belfast.
+
+   What is the distance of the longest route?
+
+   Your puzzle answer was 898.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/9/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22All+in+a+Single+Night%22+%2D+Day+9+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F9&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F9
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F9&title=I%27ve+completed+%22All+in+a+Single+Night%22+%2D+Day+9+%2D+Advent+of+Code
diff --git a/2015/day10/input b/2015/day10/input
new file mode 100644
index 0000000..89172ea
--- /dev/null
+++ b/2015/day10/input
@@ -0,0 +1 @@
+1113122113
\ No newline at end of file
diff --git a/2015/day10/main.go b/2015/day10/main.go
new file mode 100644
index 0000000..821603b
--- /dev/null
+++ b/2015/day10/main.go
@@ -0,0 +1,76 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+func printUsage() {
+	fmt.Println("Usage: day10 <look-and-say> [iterations]")
+	os.Exit(1)
+}
+
+/* Pt 2 Result:
+Length of result: 5103798
+*/
+func main() {
+	var debugMode bool
+
+	args := os.Args
+	if len(args) < 2 {
+		printUsage()
+	}
+	var lasString string
+	lasString = args[1]
+
+	var iter int
+	var err error
+	if len(args) > 2 {
+		if iter, err = strconv.Atoi(args[2]); err != nil {
+			printUsage()
+		}
+	} else {
+		iter = 40
+	}
+	if len(args) > 3 {
+		if args[2] == "--debug" {
+			debugMode = true
+		}
+	}
+
+	fmt.Printf("Iterate %d times over %s\n", iter, lasString)
+	for i := 0; i < iter; i++ {
+		fmt.Print("O")
+		if i%10 == 9 {
+			fmt.Println(" " + strconv.Itoa(len(lasString)))
+		}
+		r := lookAndSay(lasString)
+		if debugMode {
+			fmt.Println(strconv.Itoa(i) + " >> " + r)
+		}
+		lasString = r
+	}
+	fmt.Println("\nLength of result: " + strconv.Itoa(len(lasString)))
+}
+
+func lookAndSay(str string) string {
+	numI := 1
+	var ret string
+
+	strLen := len(str)
+
+	for i := range str {
+		if strLen > i+1 {
+			if str[i+1] != str[i] {
+				ret += strconv.Itoa(numI) + string(str[i])
+				numI = 0
+			}
+		} else {
+			// Last char in string
+			ret += strconv.Itoa(numI) + string(str[i])
+		}
+		numI++
+	}
+	return ret
+}
\ No newline at end of file
diff --git a/2015/day10/problem b/2015/day10/problem
new file mode 100644
index 0000000..135cb11
--- /dev/null
+++ b/2015/day10/problem
@@ -0,0 +1,66 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 10: Elves Look, Elves Say ---
+
+   Today, the Elves are playing a game called look-and-say. They take turns making sequences by
+   reading aloud the previous sequence and using that reading as the next sequence. For example,
+   211 is read as "one two, two ones", which becomes 1221 (1 2, 2 1s).
+
+   Look-and-say sequences are generated iteratively, using the previous value as input for the
+   next step. For each step, take the previous value, and replace each run of digits (like 111)
+   with the number of digits (3) followed by the digit itself (1).
+
+   For example:
+
+     • 1 becomes 11 (1 copy of digit 1).
+     • 11 becomes 21 (2 copies of digit 1).
+     • 21 becomes 1211 (one 2 followed by one 1).
+     • 1211 becomes 111221 (one 1, one 2, and two 1s).
+     • 111221 becomes 312211 (three 1s, two 2s, and one 1).
+
+   Starting with the digits in your puzzle input, apply this process 40 times. What is the length
+   of the result?
+
+   Your puzzle answer was 360154.
+
+--- Part Two ---
+
+   Neat, right? You might also enjoy hearing John Conway talking about this sequence (that's
+   Conway of Conway's Game of Life fame).
+
+   Now, starting again with the digits in your puzzle input, apply this process 50 times. What is
+   the length of the new result?
+
+   Your puzzle answer was 5103798.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   Your puzzle input was 1113122113.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . https://en.wikipedia.org/wiki/Look-and-say_sequence
+   . https://www.youtube.com/watch?v=ea7lJkEhytA
+   . http://adventofcode.com/
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Elves+Look%2C+Elves+Say%22+%2D+Day+10+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F10&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F10
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F10&title=I%27ve+completed+%22Elves+Look%2C+Elves+Say%22+%2D+Day+10+%2D+Advent+of+Code
diff --git a/2015/day11/input b/2015/day11/input
new file mode 100644
index 0000000..664d9c6
--- /dev/null
+++ b/2015/day11/input
@@ -0,0 +1 @@
+hepxcrrq
\ No newline at end of file
diff --git a/2015/day11/main.go b/2015/day11/main.go
new file mode 100644
index 0000000..3d04726
--- /dev/null
+++ b/2015/day11/main.go
@@ -0,0 +1,95 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+func printUsage() {
+	fmt.Println("Usage: day11 <string> [add-amt]")
+	fmt.Println("If add-amt isn't given, we just add 1")
+	os.Exit(1)
+}
+
+func main() {
+	args := os.Args
+	if len(args) < 2 {
+		printUsage()
+	}
+	var orig string
+	orig = args[1]
+
+	var valid bool
+	for !valid {
+		orig = addOneToString(orig)
+		valid = testPassword(orig)
+	}
+	fmt.Println(orig)
+}
+
+func addOneToString(s string) string {
+	lastPlace := s[len(s)-1]
+	ret := s[:len(s)-1]
+	if lastPlace == 'z' {
+		lastPlace = 'a'
+		ret = addOneToString(s[:len(s)-1])
+	} else {
+		lastPlace++
+	}
+	return ret + string(lastPlace)
+}
+
+func testPassword(s string) bool {
+	if hasValidChars(s) && hasStraight(s) && hasDoubles(s) {
+		return true
+	}
+	return false
+}
+
+// Test if string contains only valid chars
+func hasValidChars(s string) bool {
+	if strings.Count(s, "i") > 0 {
+		return false
+	}
+	if strings.Count(s, "o") > 0 {
+		return false
+	}
+	if strings.Count(s, "l") > 0 {
+		return false
+	}
+	return true
+}
+
+// Test if string has a 3 char straight
+func hasStraight(s string) bool {
+	for i := range s {
+		if i > 1 {
+			if (s[i-2] == s[i]-2) && (s[i-1] == s[i]-1) {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+// Test if string has 2 doubles
+func hasDoubles(s string) bool {
+	if i := hasDouble(s); i >= 0 {
+		return (hasDouble(s[i+2:]) >= 0)
+	}
+	return false
+}
+
+// Returns index of first double in string
+// -1 if there isn't one
+func hasDouble(s string) int {
+	for i := range s {
+		if i > 0 {
+			if s[i-1] == s[i] {
+				return i - 1
+			}
+		}
+	}
+	return -1
+}
diff --git a/2015/day11/problem b/2015/day11/problem
new file mode 100644
index 0000000..2b16b52
--- /dev/null
+++ b/2015/day11/problem
@@ -0,0 +1,75 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 11: Corporate Policy ---
+
+   Santa's previous password expired, and he needs help choosing a new one.
+
+   To help him remember his new password after the old one expires, Santa has devised a method of
+   coming up with a password based on the previous one. Corporate policy dictates that passwords
+   must be exactly eight lowercase letters (for security reasons), so he finds his new password by
+   incrementing his old password string repeatedly until it is valid.
+
+   Incrementing is just like counting with numbers: xx, xy, xz, ya, yb, and so on. Increase the
+   rightmost letter one step; if it was z, it wraps around to a, and repeat with the next letter
+   to the left until one doesn't wrap around.
+
+   Unfortunately for Santa, a new Security-Elf recently started, and he has imposed some
+   additional password requirements:
+
+     • Passwords must include one increasing straight of at least three letters, like abc, bcd,
+       cde, and so on, up to xyz. They cannot skip letters; abd doesn't count.
+     • Passwords may not contain the letters i, o, or l, as these letters can be mistaken for
+       other characters and are therefore confusing.
+     • Passwords must contain at least two different, non-overlapping pairs of letters, like aa,
+       bb, or zz.
+
+   For example:
+
+     • hijklmmn meets the first requirement (because it contains the straight hij) but fails the
+       second requirement requirement (because it contains i and l).
+     • abbceffg meets the third requirement (because it repeats bb and ff) but fails the first
+       requirement.
+     • abbcegjk fails the third requirement, because it only has one double letter (bb).
+     • The next password after abcdefgh is abcdffaa.
+     • The next password after ghijklmn is ghjaabcc, because you eventually skip all the passwords
+       that start with ghi..., since i is not allowed.
+
+   Given Santa's current password (your puzzle input), what should his next password be?
+
+   Your puzzle answer was hepxxyzz.
+
+--- Part Two ---
+
+   Santa's password expired again. What's the next one?
+
+   Your puzzle answer was heqaabcc.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   Your puzzle input was hepxcrrq.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Corporate+Policy%22+%2D+Day+11+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F11&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F11
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F11&title=I%27ve+completed+%22Corporate+Policy%22+%2D+Day+11+%2D+Advent+of+Code
diff --git a/2015/day12/input b/2015/day12/input
new file mode 100644
index 0000000..bd91fda
--- /dev/null
+++ b/2015/day12/input
@@ -0,0 +1 @@
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diff --git a/2015/day12/main.go b/2015/day12/main.go
new file mode 100644
index 0000000..4ceafc2
--- /dev/null
+++ b/2015/day12/main.go
@@ -0,0 +1,133 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	var inpArr []string
+	var input, readInp string
+	for {
+		_, err := fmt.Scan(&readInp)
+		if err != nil {
+			if err != io.EOF {
+				log.Fatal(err)
+			}
+			break
+		}
+		inpArr = append(inpArr, readInp)
+	}
+	input = strings.Join(inpArr, "")
+
+	//fmt.Println("Part 1 Solution: " + strconv.Itoa(sumAllInts(input)))
+	fmt.Println("Part 2 Solution: " + strconv.Itoa(sumAllInts(removeAllValue(input, "red"))))
+	//removeAllValue(input, "red")
+}
+
+func removeAllValue(s string, remove string) string {
+	ret := s
+	var removed bool
+	//ret, _ = removeFirstValue(ret, remove)
+	ret, removed = removeFirstValue(ret, remove)
+	for removed {
+		ret, removed = removeFirstValue(ret, remove)
+	}
+	return ret
+}
+
+// Not quite returning proper JSON... But may be good enough
+// for the problem (since we're not looking for JSON output
+// anyways
+func removeFirstValue(s string, remove string) (string, bool) {
+	ret := s
+	var curlIdx []int
+	removeStart := -1
+	for i := range s {
+		if s[i] == '{' {
+			curlIdx = pushLevel(curlIdx, i)
+		}
+		if checkForValueAtIdx(s, ":\""+remove+"\"", i) {
+			removeStart, curlIdx = popLevel(curlIdx)
+			ret = strings.Replace(ret, trimAtClose(s[removeStart:]), "", -1)
+			// Now figure out if we have an abandoned key
+			if ret[removeStart-1] == ':' {
+				// Trackback in ret until we find the matching " and remove up to removeStart
+				remTrackBack := removeStart - 3
+				for ret[remTrackBack] != '"' {
+					remTrackBack--
+				}
+			}
+			return ret, true
+		}
+		if s[i] == '}' {
+			_, curlIdx = popLevel(curlIdx)
+		}
+	}
+	return ret, false
+}
+
+// Trim string after closing bracket/brace
+func trimAtClose(s string) string {
+	var levelStack []int
+	for i := range s {
+		if s[i] == '[' || s[i] == '{' {
+			levelStack = pushLevel(levelStack, i)
+		} else if s[i] == ']' || s[i] == '}' {
+			idx := -1
+			idx, levelStack = popLevel(levelStack)
+			if idx == 0 {
+				endIdx := i + 1
+				if s[i+1] == ',' {
+					endIdx++
+				}
+				return s[:endIdx]
+			}
+		}
+	}
+	return s
+}
+
+// Checks if the s contains v starting at index i
+func checkForValueAtIdx(s string, v string, i int) bool {
+	if len(s) > i+len(v) {
+		if s[i:i+len(v)] == v {
+			return true
+		}
+	}
+	return false
+}
+
+// Simple Part 1 solution
+func sumAllInts(s string) int {
+	var allIntStrings []string
+	re := regexp.MustCompile("[-]?[0-9]+")
+	allIntStrings = append(allIntStrings, re.FindAllString(s, -1)...)
+	var sum int
+	for i := range allIntStrings {
+		sum += mustAtoi(allIntStrings[i])
+	}
+	return sum
+}
+
+func pushLevel(stack []int, n int) []int {
+	return append(stack, n)
+}
+
+func popLevel(stack []int) (int, []int) {
+	return stack[len(stack)-1], stack[:len(stack)-1]
+}
+
+func mustAtoi(s string) int {
+	r, err := strconv.Atoi(s)
+	if err != nil {
+		fmt.Println("Tried to Atoi " + s)
+		os.Exit(1)
+	}
+	return r
+}
diff --git a/2015/day12/problem b/2015/day12/problem
new file mode 100644
index 0000000..4943b8d
--- /dev/null
+++ b/2015/day12/problem
@@ -0,0 +1,70 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 12: JSAbacusFramework.io ---
+
+   Santa's Accounting-Elves need help balancing the books after a recent order. Unfortunately,
+   their accounting software uses a peculiar storage format. That's where you come in.
+
+   They have a JSON document which contains a variety of things: arrays ([1,2,3]), objects
+   ({"a":1, "b":2}), numbers, and strings. Your first job is to simply find all of the numbers
+   throughout the document and add them together.
+
+   For example:
+
+     • [1,2,3] and {"a":2,"b":4} both have a sum of 6.
+     • [[[3]]] and {"a":{"b":4},"c":-1} both have a sum of 3.
+     • {"a":[-1,1]} and [-1,{"a":1}] both have a sum of 0.
+     • [] and {} both have a sum of 0.
+
+   You will not encounter any strings containing numbers.
+
+   What is the sum of all numbers in the document?
+
+   Your puzzle answer was 191164.
+
+--- Part Two ---
+
+   Uh oh - the Accounting-Elves have realized that they double-counted everything red.
+
+   Ignore any object (and all of its children) which has any property with the value "red". Do
+   this only for objects ({...}), not arrays ([...]).
+
+     • [1,2,3] still has a sum of 6.
+     • [1,{"c":"red","b":2},3] now has a sum of 4, because the middle object is ignored.
+     • {"d":"red","e":[1,2,3,4],"f":5} now has a sum of 0, because the entire structure is
+       ignored.
+     • [1,"red",5] has a sum of 6, because "red" in an array has no effect.
+
+   Your puzzle answer was 87842.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://json.org/
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/12/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22JSAbacusFramework%2Eio%22+%2D+Day+12+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F12&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F12
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F12&title=I%27ve+completed+%22JSAbacusFramework%2Eio%22+%2D+Day+12+%2D+Advent+of+Code
diff --git a/2015/day13/input b/2015/day13/input
new file mode 100644
index 0000000..a6f9c66
--- /dev/null
+++ b/2015/day13/input
@@ -0,0 +1,56 @@
+Alice would gain 2 happiness units by sitting next to Bob.
+Alice would gain 26 happiness units by sitting next to Carol.
+Alice would lose 82 happiness units by sitting next to David.
+Alice would lose 75 happiness units by sitting next to Eric.
+Alice would gain 42 happiness units by sitting next to Frank.
+Alice would gain 38 happiness units by sitting next to George.
+Alice would gain 39 happiness units by sitting next to Mallory.
+Bob would gain 40 happiness units by sitting next to Alice.
+Bob would lose 61 happiness units by sitting next to Carol.
+Bob would lose 15 happiness units by sitting next to David.
+Bob would gain 63 happiness units by sitting next to Eric.
+Bob would gain 41 happiness units by sitting next to Frank.
+Bob would gain 30 happiness units by sitting next to George.
+Bob would gain 87 happiness units by sitting next to Mallory.
+Carol would lose 35 happiness units by sitting next to Alice.
+Carol would lose 99 happiness units by sitting next to Bob.
+Carol would lose 51 happiness units by sitting next to David.
+Carol would gain 95 happiness units by sitting next to Eric.
+Carol would gain 90 happiness units by sitting next to Frank.
+Carol would lose 16 happiness units by sitting next to George.
+Carol would gain 94 happiness units by sitting next to Mallory.
+David would gain 36 happiness units by sitting next to Alice.
+David would lose 18 happiness units by sitting next to Bob.
+David would lose 65 happiness units by sitting next to Carol.
+David would lose 18 happiness units by sitting next to Eric.
+David would lose 22 happiness units by sitting next to Frank.
+David would gain 2 happiness units by sitting next to George.
+David would gain 42 happiness units by sitting next to Mallory.
+Eric would lose 65 happiness units by sitting next to Alice.
+Eric would gain 24 happiness units by sitting next to Bob.
+Eric would gain 100 happiness units by sitting next to Carol.
+Eric would gain 51 happiness units by sitting next to David.
+Eric would gain 21 happiness units by sitting next to Frank.
+Eric would gain 55 happiness units by sitting next to George.
+Eric would lose 44 happiness units by sitting next to Mallory.
+Frank would lose 48 happiness units by sitting next to Alice.
+Frank would gain 91 happiness units by sitting next to Bob.
+Frank would gain 8 happiness units by sitting next to Carol.
+Frank would lose 66 happiness units by sitting next to David.
+Frank would gain 97 happiness units by sitting next to Eric.
+Frank would lose 9 happiness units by sitting next to George.
+Frank would lose 92 happiness units by sitting next to Mallory.
+George would lose 44 happiness units by sitting next to Alice.
+George would lose 25 happiness units by sitting next to Bob.
+George would gain 17 happiness units by sitting next to Carol.
+George would gain 92 happiness units by sitting next to David.
+George would lose 92 happiness units by sitting next to Eric.
+George would gain 18 happiness units by sitting next to Frank.
+George would gain 97 happiness units by sitting next to Mallory.
+Mallory would gain 92 happiness units by sitting next to Alice.
+Mallory would lose 96 happiness units by sitting next to Bob.
+Mallory would lose 51 happiness units by sitting next to Carol.
+Mallory would lose 81 happiness units by sitting next to David.
+Mallory would gain 31 happiness units by sitting next to Eric.
+Mallory would lose 73 happiness units by sitting next to Frank.
+Mallory would lose 89 happiness units by sitting next to George.
diff --git a/2015/day13/inputwithme b/2015/day13/inputwithme
new file mode 100644
index 0000000..561614c
--- /dev/null
+++ b/2015/day13/inputwithme
@@ -0,0 +1,71 @@
+Alice would gain 2 happiness units by sitting next to Bob.
+Alice would gain 26 happiness units by sitting next to Carol.
+Alice would lose 82 happiness units by sitting next to David.
+Alice would lose 75 happiness units by sitting next to Eric.
+Alice would gain 42 happiness units by sitting next to Frank.
+Alice would gain 38 happiness units by sitting next to George.
+Alice would gain 39 happiness units by sitting next to Mallory.
+Alice would gain 0 happiness units by sitting next to Brian.
+Bob would gain 40 happiness units by sitting next to Alice.
+Bob would lose 61 happiness units by sitting next to Carol.
+Bob would lose 15 happiness units by sitting next to David.
+Bob would gain 63 happiness units by sitting next to Eric.
+Bob would gain 41 happiness units by sitting next to Frank.
+Bob would gain 30 happiness units by sitting next to George.
+Bob would gain 87 happiness units by sitting next to Mallory.
+Bob would gain 0 happiness units by sitting next to Brian.
+Carol would lose 35 happiness units by sitting next to Alice.
+Carol would lose 99 happiness units by sitting next to Bob.
+Carol would lose 51 happiness units by sitting next to David.
+Carol would gain 95 happiness units by sitting next to Eric.
+Carol would gain 90 happiness units by sitting next to Frank.
+Carol would lose 16 happiness units by sitting next to George.
+Carol would gain 94 happiness units by sitting next to Mallory.
+Carol would gain 0 happiness units by sitting next to Brian.
+David would gain 36 happiness units by sitting next to Alice.
+David would lose 18 happiness units by sitting next to Bob.
+David would lose 65 happiness units by sitting next to Carol.
+David would lose 18 happiness units by sitting next to Eric.
+David would lose 22 happiness units by sitting next to Frank.
+David would gain 2 happiness units by sitting next to George.
+David would gain 42 happiness units by sitting next to Mallory.
+David would gain 0 happiness units by sitting next to Brian.
+Eric would lose 65 happiness units by sitting next to Alice.
+Eric would gain 24 happiness units by sitting next to Bob.
+Eric would gain 100 happiness units by sitting next to Carol.
+Eric would gain 51 happiness units by sitting next to David.
+Eric would gain 21 happiness units by sitting next to Frank.
+Eric would gain 55 happiness units by sitting next to George.
+Eric would lose 44 happiness units by sitting next to Mallory.
+Eric would gain 0 happiness units by sitting next to Brian.
+Frank would lose 48 happiness units by sitting next to Alice.
+Frank would gain 91 happiness units by sitting next to Bob.
+Frank would gain 8 happiness units by sitting next to Carol.
+Frank would lose 66 happiness units by sitting next to David.
+Frank would gain 97 happiness units by sitting next to Eric.
+Frank would lose 9 happiness units by sitting next to George.
+Frank would lose 92 happiness units by sitting next to Mallory.
+Frank would gain 0 happiness units by sitting next to Brian.
+George would lose 44 happiness units by sitting next to Alice.
+George would lose 25 happiness units by sitting next to Bob.
+George would gain 17 happiness units by sitting next to Carol.
+George would gain 92 happiness units by sitting next to David.
+George would lose 92 happiness units by sitting next to Eric.
+George would gain 18 happiness units by sitting next to Frank.
+George would gain 97 happiness units by sitting next to Mallory.
+George would gain 0 happiness units by sitting next to Brian.
+Mallory would gain 92 happiness units by sitting next to Alice.
+Mallory would lose 96 happiness units by sitting next to Bob.
+Mallory would lose 51 happiness units by sitting next to Carol.
+Mallory would lose 81 happiness units by sitting next to David.
+Mallory would gain 31 happiness units by sitting next to Eric.
+Mallory would lose 73 happiness units by sitting next to Frank.
+Mallory would gain 0 happiness units by sitting next to Brian.
+Mallory would lose 89 happiness units by sitting next to George.
+Brian would gain 0 happiness units by sitting next to Alice.
+Brian would gain 0 happiness units by sitting next to Bob.
+Brian would gain 0 happiness units by sitting next to Carol.
+Brian would gain 0 happiness units by sitting next to David.
+Brian would gain 0 happiness units by sitting next to Eric.
+Brian would gain 0 happiness units by sitting next to Frank.
+Brian would gain 0 happiness units by sitting next to Mallory.
diff --git a/2015/day13/main.go b/2015/day13/main.go
new file mode 100644
index 0000000..fdf38aa
--- /dev/null
+++ b/2015/day13/main.go
@@ -0,0 +1,157 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+var people map[string]person
+
+func main() {
+	var pplSlice []string
+	people = make(map[string]person)
+	var input []string
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		input = append(input, scanner.Text())
+	}
+
+	for i := range input {
+		p := parseLine(input[i])
+		people[p.name] = p
+	}
+	for i := range people {
+		pplSlice = append(pplSlice, people[i].name)
+	}
+	// Output all preferences
+	/*
+		for k, v := range people {
+			fmt.Println(k)
+			fmt.Println("  High: " + v.highName + " :: " + strconv.Itoa(v.highVal))
+			for pk, pv := range v.prefs {
+				fmt.Println("  " + pk + ": " + strconv.Itoa(pv))
+			}
+		}
+	*/
+	//getPerms(pplSlice)
+	first := pplSlice[0]
+	res := getPerms(pplSlice[1:])
+	var high int
+	var arrangement []string
+	for i := range res {
+		tstArr := append([]string{first}, res[i]...)
+		tst := happinessFromStrings(tstArr)
+		if tst > high {
+			high = tst
+			arrangement = tstArr
+		}
+	}
+	fmt.Println("Highest: " + strconv.Itoa(high))
+	fmt.Println(arrangement)
+}
+
+func getPerms(ppl []string) [][]string {
+	var ret [][]string
+	if len(ppl) == 1 {
+		return append(ret, ppl)
+	}
+
+	for j := range ppl {
+		var bld []string
+		for i := range ppl {
+			if i != j {
+				bld = append(bld, ppl[i])
+			}
+		}
+		perms := getPerms(bld)
+		for i := range perms {
+			perms[i] = append([]string{ppl[j]}, perms[i]...)
+			ret = append(ret, perms[i])
+		}
+	}
+	return ret
+}
+
+func happinessFromStrings(pS []string) int {
+	var ppl []person
+	for i := range pS {
+		ppl = append(ppl, people[pS[i]])
+	}
+	return happinessValue(ppl)
+}
+
+func happinessValue(ppl []person) int {
+	var ret int
+	for i := range ppl {
+		p1, p2 := getNeighbors(ppl[i], ppl)
+		ret += ppl[i].prefs[p1.name]
+		ret += ppl[i].prefs[p2.name]
+	}
+	return ret
+}
+
+func getNeighbors(p person, ppl []person) (person, person) {
+	var p1, p2 person
+	for idx := range ppl {
+		if ppl[idx].name == p.name {
+			if idx == 0 {
+				p1 = ppl[len(ppl)-1]
+				p2 = ppl[idx+1]
+			} else if idx == len(ppl)-1 {
+				p1 = ppl[idx-1]
+				p2 = ppl[0]
+			} else {
+				p1 = ppl[idx-1]
+				p2 = ppl[idx+1]
+			}
+			break
+		}
+	}
+	return p1, p2
+}
+
+type person struct {
+	name     string
+	prefs    map[string]int
+	highName string
+	highVal  int
+	lowName  string
+	lowVal   int
+}
+
+func parseLine(s string) person {
+	parts := strings.Split(s, " ")
+	who := parts[0]
+	direction := parts[2]
+	amount := mustAtoi(parts[3])
+	nextTo := parts[10][:len(parts[10])-1]
+	if direction == "lose" {
+		amount = amount * -1
+	}
+	var ret person
+	var ok bool
+	if ret, ok = people[who]; !ok {
+		ret = person{name: who}
+		ret.prefs = make(map[string]int)
+	}
+	ret.prefs[nextTo] = amount
+	if ret.highVal < amount || ret.highName == "" {
+		ret.highVal, ret.highName = amount, nextTo
+	}
+	if ret.lowVal > amount || ret.lowName == "" {
+		ret.lowVal, ret.lowName = amount, nextTo
+	}
+	return ret
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+	}
+	return i
+}
diff --git a/2015/day13/problem b/2015/day13/problem
new file mode 100644
index 0000000..d983dbb
--- /dev/null
+++ b/2015/day13/problem
@@ -0,0 +1,96 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 13: Knights of the Dinner Table ---
+
+   In years past, the holiday feast with your family hasn't gone so well. Not everyone gets along!
+   This year, you resolve, will be different. You're going to find the optimal seating arrangement
+   and avoid all those awkward conversations.
+
+   You start by writing up a list of everyone invited and the amount their happiness would
+   increase or decrease if they were to find themselves sitting next to each other person. You
+   have a circular table that will be just big enough to fit everyone comfortably, and so each
+   person will have exactly two neighbors.
+
+   For example, suppose you have only four attendees planned, and you calculate their potential
+   happiness as follows:
+
+ Alice would gain 54 happiness units by sitting next to Bob.
+ Alice would lose 79 happiness units by sitting next to Carol.
+ Alice would lose 2 happiness units by sitting next to David.
+ Bob would gain 83 happiness units by sitting next to Alice.
+ Bob would lose 7 happiness units by sitting next to Carol.
+ Bob would lose 63 happiness units by sitting next to David.
+ Carol would lose 62 happiness units by sitting next to Alice.
+ Carol would gain 60 happiness units by sitting next to Bob.
+ Carol would gain 55 happiness units by sitting next to David.
+ David would gain 46 happiness units by sitting next to Alice.
+ David would lose 7 happiness units by sitting next to Bob.
+ David would gain 41 happiness units by sitting next to Carol.
+
+   Then, if you seat Alice next to David, Alice would lose 2 happiness units (because David talks
+   so much), but David would gain 46 happiness units (because Alice is such a good listener), for
+   a total change of 44.
+
+   If you continue around the table, you could then seat Bob next to Alice (Bob gains 83, Alice
+   gains 54). Finally, seat Carol, who sits next to Bob (Carol gains 60, Bob loses 7) and David
+   (Carol gains 55, David gains 41). The arrangement looks like this:
+
+      +41 +46
+ +55   David    -2
+ Carol       Alice
+ +60    Bob    +54
+      -7  +83
+
+   After trying every other seating arrangement in this hypothetical scenario, you find that this
+   one is the most optimal, with a total change in happiness of 330.
+
+   What is the total change in happiness for the optimal seating arrangement of the actual guest
+   list?
+
+   Your puzzle answer was 733.
+
+--- Part Two ---
+
+   In all the commotion, you realize that you forgot to seat yourself. At this point, you're
+   pretty apathetic toward the whole thing, and your happiness wouldn't really go up or down
+   regardless of who you sit next to. You assume everyone else would be just as ambivalent about
+   sitting next to you, too.
+
+   So, add yourself to the list, and give all happiness relationships that involve you a score of
+   0.
+
+   What is the total change in happiness for the optimal seating arrangement that actually
+   includes yourself?
+
+   Your puzzle answer was 725.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/13/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Knights+of+the+Dinner+Table%22+%2D+Day+13+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F13&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F13
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F13&title=I%27ve+completed+%22Knights+of+the+Dinner+Table%22+%2D+Day+13+%2D+Advent+of+Code
diff --git a/2015/day14/input b/2015/day14/input
new file mode 100644
index 0000000..2af1170
--- /dev/null
+++ b/2015/day14/input
@@ -0,0 +1,9 @@
+Vixen can fly 19 km/s for 7 seconds, but then must rest for 124 seconds.
+Rudolph can fly 3 km/s for 15 seconds, but then must rest for 28 seconds.
+Donner can fly 19 km/s for 9 seconds, but then must rest for 164 seconds.
+Blitzen can fly 19 km/s for 9 seconds, but then must rest for 158 seconds.
+Comet can fly 13 km/s for 7 seconds, but then must rest for 82 seconds.
+Cupid can fly 25 km/s for 6 seconds, but then must rest for 145 seconds.
+Dasher can fly 14 km/s for 3 seconds, but then must rest for 38 seconds.
+Dancer can fly 3 km/s for 16 seconds, but then must rest for 37 seconds.
+Prancer can fly 25 km/s for 6 seconds, but then must rest for 143 seconds.
diff --git a/2015/day14/main.go b/2015/day14/main.go
new file mode 100644
index 0000000..2ac7c1e
--- /dev/null
+++ b/2015/day14/main.go
@@ -0,0 +1,88 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Println("Usage: day14 <seconds>")
+		os.Exit(1)
+	}
+	raceTime := os.Args[1]
+	var input []string
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		input = append(input, scanner.Text())
+	}
+
+	var allDeer []deer
+	for i := range input {
+		parts := strings.Split(input[i], " ")
+		allDeer = append(allDeer, *createDeer(
+			parts[0],
+			mustAtoi(parts[3]),
+			mustAtoi(parts[6]),
+			mustAtoi(parts[13]),
+		))
+	}
+	fmt.Println("Race ends at " + raceTime)
+	endTime := mustAtoi(raceTime)
+	deerStars := make(map[string]int)
+	for i := 1; i <= endTime; i++ {
+		var topVal int
+		for j := range allDeer {
+			tmp := allDeer[j].travelFor(i)
+			if tmp > topVal {
+				topVal = tmp
+			}
+		}
+		for j := range allDeer {
+			if allDeer[j].travelFor(i) == topVal {
+				deerStars[allDeer[j].name]++
+			}
+		}
+	}
+	for i := range deerStars {
+		fmt.Println(i + ": " + strconv.Itoa(deerStars[i]))
+	}
+}
+
+type deer struct {
+	name         string
+	speed        int
+	moveDuration int
+	restDuration int
+}
+
+func createDeer(n string, s, m, r int) *deer {
+	d := deer{n, s, m, r}
+	return &d
+}
+
+func (d *deer) travelFor(s int) int {
+	var dist int
+	for s > 0 {
+		if s > d.moveDuration {
+			dist += d.speed * d.moveDuration
+		} else {
+			dist += d.speed * s
+		}
+		s -= d.moveDuration
+		s -= d.restDuration
+	}
+	return dist
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+	}
+	return i
+}
diff --git a/2015/day14/problem b/2015/day14/problem
new file mode 100644
index 0000000..9e85a62
--- /dev/null
+++ b/2015/day14/problem
@@ -0,0 +1,84 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 14: Reindeer Olympics ---
+
+   This year is the Reindeer Olympics! Reindeer can fly at high speeds, but must rest occasionally
+   to recover their energy. Santa would like to know which of his reindeer is fastest, and so he
+   has them race.
+
+   Reindeer can only either be flying (always at their top speed) or resting (not moving at all),
+   and always spend whole seconds in either state.
+
+   For example, suppose you have the following Reindeer:
+
+     • Comet can fly 14 km/s for 10 seconds, but then must rest for 127 seconds.
+     • Dancer can fly 16 km/s for 11 seconds, but then must rest for 162 seconds.
+
+   After one second, Comet has gone 14 km, while Dancer has gone 16 km. After ten seconds, Comet
+   has gone 140 km, while Dancer has gone 160 km. On the eleventh second, Comet begins resting
+   (staying at 140 km), and Dancer continues on for a total distance of 176 km. On the 12th
+   second, both reindeer are resting. They continue to rest until the 138th second, when Comet
+   flies for another ten seconds. On the 174th second, Dancer flies for another 11 seconds.
+
+   In this example, after the 1000th second, both reindeer are resting, and Comet is in the lead
+   at 1120 km (poor Dancer has only gotten 1056 km by that point). So, in this situation, Comet
+   would win (if the race ended at 1000 seconds).
+
+   Given the descriptions of each reindeer (in your puzzle input), after exactly 2503 seconds,
+   what distance has the winning reindeer traveled?
+
+   Your puzzle answer was 2660.
+
+--- Part Two ---
+
+   Seeing how reindeer move in bursts, Santa decides he's not pleased with the old scoring system.
+
+   Instead, at the end of each second, he awards one point to the reindeer currently in the lead.
+   (If there are multiple reindeer tied for the lead, they each get one point.) He keeps the
+   traditional 2503 second time limit, of course, as doing otherwise would be entirely ridiculous.
+
+   Given the example reindeer from above, after the first second, Dancer is in the lead and gets
+   one point. He stays in the lead until several seconds into Comet's second burst: after the
+   140th second, Comet pulls into the lead and gets his first point. Of course, since Dancer had
+   been in the lead for the 139 seconds before that, he has accumulated 139 points by the 140th
+   second.
+
+   After the 1000th second, Dancer has accumulated 689 points, while poor Comet, our old champion,
+   only has 312. So, with the new scoring system, Dancer would win (if the race ended at 1000
+   seconds).
+
+   Again given the descriptions of each reindeer (in your puzzle input), after exactly 2503
+   seconds, how many points does the winning reindeer have?
+
+   Your puzzle answer was 1256.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/14/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Reindeer+Olympics%22+%2D+Day+14+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F14&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F14
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F14&title=I%27ve+completed+%22Reindeer+Olympics%22+%2D+Day+14+%2D+Advent+of+Code
diff --git a/2015/day14/sample_input b/2015/day14/sample_input
new file mode 100644
index 0000000..706ceae
--- /dev/null
+++ b/2015/day14/sample_input
@@ -0,0 +1,2 @@
+Comet can fly 14 km/s for 10 seconds, but then must rest for 127 seconds.
+Dancer can fly 16 km/s for 11 seconds, but then must rest for 162 seconds.
diff --git a/2015/day15/input b/2015/day15/input
new file mode 100644
index 0000000..634c6a5
--- /dev/null
+++ b/2015/day15/input
@@ -0,0 +1,4 @@
+Frosting: capacity 4, durability -2, flavor 0, texture 0, calories 5
+Candy: capacity 0, durability 5, flavor -1, texture 0, calories 8
+Butterscotch: capacity -1, durability 0, flavor 5, texture 0, calories 6
+Sugar: capacity 0, durability 0, flavor -2, texture 2, calories 1
diff --git a/2015/day15/main.go b/2015/day15/main.go
new file mode 100644
index 0000000..5c15dc3
--- /dev/null
+++ b/2015/day15/main.go
@@ -0,0 +1,156 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+var ings []ingredient
+
+func main() {
+	var input []string
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		input = append(input, scanner.Text())
+	}
+
+	var stringIngs []string
+	total := 100
+	for i := range input {
+		bldI := *createIngredient(input[i])
+		ings = append(ings, bldI)
+		stringIngs = append(stringIngs, bldI.name)
+	}
+
+	combis := getIntCombis(total, len(stringIngs))
+	ingPerms := getStringPermus(stringIngs)
+
+	var highVal int
+	var highMap map[string]int
+	for h := range combis {
+		for i := range ingPerms {
+			tstMap := make(map[string]int)
+			for j := range ingPerms[i] {
+				tstMap[ingPerms[i][j]] = combis[h][j]
+			}
+			tmp, cals := calcValue(tstMap)
+			if cals == 500 && tmp > highVal {
+				highVal = tmp
+				highMap = tstMap
+
+				fmt.Print(strconv.Itoa(tmp))
+				fmt.Print(" :: ")
+				fmt.Println(tstMap)
+			}
+		}
+	}
+	fmt.Println()
+	fmt.Println(highMap)
+	fmt.Println("Highest Value: " + strconv.Itoa(highVal))
+}
+
+func getStringPermus(vals []string) [][]string {
+	var ret [][]string
+	if len(vals) == 1 {
+		return append(ret, vals)
+	}
+
+	for j := range vals {
+		var bld []string
+		for i := range vals {
+			if i != j {
+				bld = append(bld, vals[i])
+			}
+		}
+		tmp := getStringPermus(bld)
+		for i := range tmp {
+			tmp[i] = append([]string{vals[j]}, tmp[i]...)
+			ret = append(ret, tmp[i])
+		}
+	}
+	return ret
+}
+
+func getIntCombis(total, containers int) [][]int {
+	var ret [][]int
+	if containers == 2 {
+		for i := total; i >= 0; i-- { //(total / 2); i-- {
+			ret = append(ret, []int{i, (total - i)})
+		}
+		return ret
+	}
+	for i := total; i >= 0; i-- { //(total / 2); i-- {
+		tmp := getIntCombis((total - i), (containers - 1))
+		for j := 0; j < len(tmp); j++ {
+			tmp[j] = append([]int{i}, tmp[j]...)
+			ret = append(ret, tmp[j])
+		}
+	}
+	return ret
+}
+
+func getIngredient(name string) *ingredient {
+	for i := range ings {
+		if ings[i].name == name {
+			return &ings[i]
+		}
+	}
+	return nil
+}
+
+func calcValue(list map[string]int) (int, int) {
+	tmp := new(ingredient)
+	for kname, v := range list {
+		k := getIngredient(kname)
+		tmp.capacity += k.capacity * v
+		tmp.durability += k.durability * v
+		tmp.flavor += k.flavor * v
+		tmp.texture += k.texture * v
+		tmp.calories += k.calories * v
+	}
+	if tmp.texture < 0 || tmp.durability < 0 || tmp.flavor < 0 || tmp.texture < 0 {
+		return 0, 0
+	}
+	return (tmp.capacity * tmp.durability * tmp.flavor * tmp.texture), tmp.calories
+}
+
+type ingredient struct {
+	name       string
+	capacity   int
+	durability int
+	flavor     int
+	texture    int
+	calories   int
+}
+
+func createIngredient(s string) *ingredient {
+	parts := strings.Split(s, " ")
+	name := parts[0]
+	name = name[:len(name)-1]
+	c := parts[2]
+	d := parts[4]
+	f := parts[6]
+	t := parts[8]
+	cal := parts[10]
+	i := ingredient{
+		name:       name,
+		capacity:   mustAtoi(c[:len(c)-1]),
+		durability: mustAtoi(d[:len(d)-1]),
+		flavor:     mustAtoi(f[:len(f)-1]),
+		texture:    mustAtoi(t[:len(t)-1]),
+		calories:   mustAtoi(cal),
+	}
+	return &i
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+	}
+	return i
+}
diff --git a/2015/day15/problem b/2015/day15/problem
new file mode 100644
index 0000000..52b98df
--- /dev/null
+++ b/2015/day15/problem
@@ -0,0 +1,92 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 15: Science for Hungry People ---
+
+   Today, you set out on the task of perfecting your milk-dunking cookie recipe. All you have to
+   do is find the right balance of ingredients.
+
+   Your recipe leaves room for exactly 100 teaspoons of ingredients. You make a list of the
+   remaining ingredients you could use to finish the recipe (your puzzle input) and their
+   properties per teaspoon:
+
+     • capacity (how well it helps the cookie absorb milk)
+     • durability (how well it keeps the cookie intact when full of milk)
+     • flavor (how tasty it makes the cookie)
+     • texture (how it improves the feel of the cookie)
+     • calories (how many calories it adds to the cookie)
+
+   You can only measure ingredients in whole-teaspoon amounts accurately, and you have to be
+   accurate so you can reproduce your results in the future. The total score of a cookie can be
+   found by adding up each of the properties (negative totals become 0) and then multiplying
+   together everything except calories.
+
+   For instance, suppose you have these two ingredients:
+
+ Butterscotch: capacity -1, durability -2, flavor 6, texture 3, calories 8
+ Cinnamon: capacity 2, durability 3, flavor -2, texture -1, calories 3
+
+   Then, choosing to use 44 teaspoons of butterscotch and 56 teaspoons of cinnamon (because the
+   amounts of each ingredient must add up to 100) would result in a cookie with the following
+   properties:
+
+     • A capacity of 44*-1 + 56*2 = 68
+     • A durability of 44*-2 + 56*3 = 80
+     • A flavor of 44*6 + 56*-2 = 152
+     • A texture of 44*3 + 56*-1 = 76
+
+   Multiplying these together (68 * 80 * 152 * 76, ignoring calories for now) results in a total
+   score of 62842880, which happens to be the best score possible given these ingredients. If any
+   properties had produced a negative total, it would have instead become zero, causing the whole
+   score to multiply to zero.
+
+   Given the ingredients in your kitchen and their properties, what is the total score of the
+   highest-scoring cookie you can make?
+
+   Your puzzle answer was 18965440.
+
+--- Part Two ---
+
+   Your cookie recipe becomes wildly popular! Someone asks if you can make another recipe that has
+   exactly 500 calories per cookie (so they can use it as a meal replacement). Keep the rest of
+   your award-winning process the same (100 teaspoons, same ingredients, same scoring system).
+
+   For example, given the ingredients above, if you had instead selected 40 teaspoons of
+   butterscotch and 60 teaspoons of cinnamon (which still adds to 100), the total calorie count
+   would be 40*8 + 60*3 = 500. The total score would go down, though: only 57600000, the best you
+   can do in such trying circumstances.
+
+   Given the ingredients in your kitchen and their properties, what is the total score of the
+   highest-scoring cookie you can make with a calorie total of 500?
+
+   Your puzzle answer was 15862900.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/15/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Science+for+Hungry+People%22+%2D+Day+15+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F15&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F15
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F15&title=I%27ve+completed+%22Science+for+Hungry+People%22+%2D+Day+15+%2D+Advent+of+Code
diff --git a/2015/day15/sample_input b/2015/day15/sample_input
new file mode 100644
index 0000000..39e7975
--- /dev/null
+++ b/2015/day15/sample_input
@@ -0,0 +1,2 @@
+B: c -1, dur -2, flav 6, tex 3, cal 8
+C: c 2, dur 3, flav -2, tex -1, cal 3
\ No newline at end of file
diff --git a/2015/day16/input b/2015/day16/input
new file mode 100644
index 0000000..ddaeefc
--- /dev/null
+++ b/2015/day16/input
@@ -0,0 +1,500 @@
+Sue 1: cars: 9, akitas: 3, goldfish: 0
+Sue 2: akitas: 9, children: 3, samoyeds: 9
+Sue 3: trees: 6, cars: 6, children: 4
+Sue 4: trees: 4, vizslas: 4, goldfish: 9
+Sue 5: akitas: 9, vizslas: 7, cars: 5
+Sue 6: vizslas: 6, goldfish: 6, akitas: 3
+Sue 7: pomeranians: 5, samoyeds: 0, perfumes: 10
+Sue 8: cars: 10, pomeranians: 7, goldfish: 8
+Sue 9: trees: 2, vizslas: 7, samoyeds: 6
+Sue 10: perfumes: 5, pomeranians: 4, children: 9
+Sue 11: vizslas: 5, perfumes: 8, cars: 10
+Sue 12: children: 10, cars: 6, perfumes: 5
+Sue 13: cats: 4, samoyeds: 7, pomeranians: 8
+Sue 14: perfumes: 6, goldfish: 10, children: 7
+Sue 15: perfumes: 4, pomeranians: 3, cars: 6
+Sue 16: perfumes: 7, cars: 9, pomeranians: 6
+Sue 17: goldfish: 3, cars: 6, vizslas: 7
+Sue 18: perfumes: 6, cars: 7, goldfish: 3
+Sue 19: trees: 0, akitas: 3, pomeranians: 8
+Sue 20: goldfish: 6, trees: 2, akitas: 6
+Sue 21: pomeranians: 9, akitas: 9, samoyeds: 9
+Sue 22: vizslas: 2, cars: 9, perfumes: 5
+Sue 23: goldfish: 10, samoyeds: 8, children: 9
+Sue 24: akitas: 4, goldfish: 1, vizslas: 5
+Sue 25: goldfish: 10, trees: 8, perfumes: 6
+Sue 26: vizslas: 5, akitas: 8, trees: 1
+Sue 27: trees: 3, cars: 6, perfumes: 2
+Sue 28: goldfish: 8, trees: 7, akitas: 10
+Sue 29: children: 5, trees: 1, goldfish: 10
+Sue 30: vizslas: 3, perfumes: 8, akitas: 3
+Sue 31: cars: 6, children: 10, perfumes: 7
+Sue 32: cars: 10, perfumes: 3, goldfish: 10
+Sue 33: perfumes: 9, vizslas: 3, akitas: 4
+Sue 34: perfumes: 10, vizslas: 7, children: 8
+Sue 35: cars: 5, perfumes: 5, vizslas: 9
+Sue 36: trees: 9, cars: 9, akitas: 7
+Sue 37: samoyeds: 9, perfumes: 2, cars: 10
+Sue 38: akitas: 7, cars: 5, trees: 5
+Sue 39: goldfish: 8, trees: 9, cars: 10
+Sue 40: trees: 0, cats: 1, pomeranians: 1
+Sue 41: pomeranians: 6, perfumes: 9, samoyeds: 1
+Sue 42: vizslas: 6, akitas: 3, pomeranians: 1
+Sue 43: vizslas: 2, perfumes: 3, pomeranians: 6
+Sue 44: akitas: 5, pomeranians: 0, vizslas: 10
+Sue 45: vizslas: 4, goldfish: 1, cars: 5
+Sue 46: cars: 4, vizslas: 8, cats: 0
+Sue 47: cats: 5, children: 8, pomeranians: 2
+Sue 48: vizslas: 3, perfumes: 6, cats: 0
+Sue 49: akitas: 7, perfumes: 0, trees: 7
+Sue 50: trees: 4, akitas: 10, vizslas: 2
+Sue 51: goldfish: 10, cars: 9, trees: 4
+Sue 52: cars: 5, children: 9, perfumes: 0
+Sue 53: vizslas: 5, cars: 3, cats: 8
+Sue 54: cars: 5, akitas: 1, goldfish: 10
+Sue 55: akitas: 10, vizslas: 2, cars: 6
+Sue 56: cats: 6, trees: 0, cars: 4
+Sue 57: vizslas: 1, akitas: 1, samoyeds: 7
+Sue 58: samoyeds: 6, vizslas: 1, akitas: 7
+Sue 59: akitas: 9, cars: 8, vizslas: 1
+Sue 60: cars: 6, vizslas: 7, goldfish: 0
+Sue 61: pomeranians: 5, akitas: 6, vizslas: 2
+Sue 62: samoyeds: 2, cats: 8, goldfish: 7
+Sue 63: vizslas: 10, goldfish: 7, samoyeds: 9
+Sue 64: perfumes: 2, trees: 1, akitas: 6
+Sue 65: cars: 8, perfumes: 10, vizslas: 9
+Sue 66: akitas: 8, vizslas: 8, perfumes: 8
+Sue 67: goldfish: 7, cars: 9, samoyeds: 9
+Sue 68: perfumes: 2, children: 7, akitas: 1
+Sue 69: perfumes: 7, vizslas: 9, akitas: 1
+Sue 70: samoyeds: 3, vizslas: 1, trees: 1
+Sue 71: vizslas: 8, goldfish: 7, trees: 9
+Sue 72: goldfish: 8, cars: 6, trees: 9
+Sue 73: perfumes: 5, cars: 10, samoyeds: 7
+Sue 74: pomeranians: 4, perfumes: 3, cars: 5
+Sue 75: samoyeds: 1, perfumes: 1, pomeranians: 1
+Sue 76: goldfish: 4, cats: 6, akitas: 7
+Sue 77: perfumes: 5, akitas: 4, vizslas: 8
+Sue 78: perfumes: 4, cats: 3, children: 4
+Sue 79: vizslas: 5, pomeranians: 9, samoyeds: 7
+Sue 80: cars: 3, samoyeds: 5, pomeranians: 7
+Sue 81: vizslas: 2, samoyeds: 4, perfumes: 2
+Sue 82: trees: 1, akitas: 10, vizslas: 9
+Sue 83: vizslas: 0, akitas: 2, samoyeds: 5
+Sue 84: perfumes: 5, vizslas: 7, children: 8
+Sue 85: cats: 3, children: 2, trees: 0
+Sue 86: cars: 3, perfumes: 2, goldfish: 2
+Sue 87: trees: 1, akitas: 7, vizslas: 0
+Sue 88: trees: 1, akitas: 2, samoyeds: 1
+Sue 89: cars: 4, vizslas: 8, akitas: 1
+Sue 90: perfumes: 5, cats: 3, vizslas: 0
+Sue 91: samoyeds: 7, cats: 6, goldfish: 8
+Sue 92: samoyeds: 10, cats: 0, cars: 7
+Sue 93: cars: 6, akitas: 7, samoyeds: 2
+Sue 94: perfumes: 0, goldfish: 6, trees: 9
+Sue 95: cars: 6, pomeranians: 2, samoyeds: 8
+Sue 96: cars: 2, trees: 9, samoyeds: 4
+Sue 97: goldfish: 5, trees: 1, children: 0
+Sue 98: akitas: 9, goldfish: 7, children: 6
+Sue 99: goldfish: 9, akitas: 0, pomeranians: 0
+Sue 100: samoyeds: 6, children: 8, vizslas: 5
+Sue 101: vizslas: 6, cars: 5, goldfish: 4
+Sue 102: vizslas: 6, akitas: 2, perfumes: 6
+Sue 103: samoyeds: 3, akitas: 7, children: 4
+Sue 104: cars: 3, perfumes: 10, cats: 6
+Sue 105: vizslas: 9, pomeranians: 0, cars: 1
+Sue 106: cats: 6, samoyeds: 8, pomeranians: 5
+Sue 107: cars: 7, trees: 4, akitas: 10
+Sue 108: perfumes: 3, vizslas: 1, goldfish: 9
+Sue 109: trees: 6, cars: 8, goldfish: 5
+Sue 110: pomeranians: 2, children: 1, vizslas: 7
+Sue 111: akitas: 0, vizslas: 8, cars: 0
+Sue 112: goldfish: 3, vizslas: 6, akitas: 2
+Sue 113: akitas: 10, pomeranians: 7, perfumes: 7
+Sue 114: cars: 10, cats: 2, vizslas: 8
+Sue 115: akitas: 8, trees: 1, vizslas: 2
+Sue 116: vizslas: 2, akitas: 7, perfumes: 1
+Sue 117: goldfish: 0, vizslas: 10, trees: 9
+Sue 118: trees: 3, cars: 0, goldfish: 0
+Sue 119: perfumes: 7, goldfish: 5, trees: 9
+Sue 120: children: 9, vizslas: 3, trees: 5
+Sue 121: vizslas: 1, goldfish: 7, akitas: 10
+Sue 122: perfumes: 1, cars: 6, trees: 1
+Sue 123: akitas: 2, vizslas: 0, goldfish: 7
+Sue 124: vizslas: 10, pomeranians: 7, akitas: 0
+Sue 125: perfumes: 4, cats: 5, vizslas: 2
+Sue 126: cars: 6, samoyeds: 8, akitas: 3
+Sue 127: trees: 9, goldfish: 7, akitas: 9
+Sue 128: cars: 8, trees: 0, perfumes: 2
+Sue 129: pomeranians: 7, vizslas: 2, perfumes: 6
+Sue 130: vizslas: 9, pomeranians: 3, trees: 6
+Sue 131: vizslas: 7, cars: 9, perfumes: 1
+Sue 132: akitas: 2, pomeranians: 9, vizslas: 7
+Sue 133: trees: 9, pomeranians: 10, samoyeds: 0
+Sue 134: children: 4, akitas: 10, perfumes: 4
+Sue 135: vizslas: 1, cats: 1, trees: 8
+Sue 136: samoyeds: 7, cars: 8, goldfish: 5
+Sue 137: perfumes: 0, children: 1, pomeranians: 10
+Sue 138: vizslas: 4, perfumes: 5, cars: 5
+Sue 139: trees: 2, perfumes: 8, goldfish: 0
+Sue 140: cars: 10, akitas: 5, goldfish: 7
+Sue 141: children: 4, trees: 3, goldfish: 8
+Sue 142: cars: 8, perfumes: 6, trees: 7
+Sue 143: akitas: 6, goldfish: 0, trees: 10
+Sue 144: akitas: 7, pomeranians: 10, perfumes: 10
+Sue 145: trees: 10, vizslas: 3, goldfish: 4
+Sue 146: samoyeds: 4, akitas: 3, perfumes: 6
+Sue 147: akitas: 8, perfumes: 2, pomeranians: 10
+Sue 148: cars: 2, perfumes: 0, goldfish: 8
+Sue 149: goldfish: 6, akitas: 7, perfumes: 6
+Sue 150: cars: 2, pomeranians: 5, perfumes: 4
+Sue 151: goldfish: 1, cars: 5, trees: 0
+Sue 152: pomeranians: 4, cars: 7, children: 1
+Sue 153: goldfish: 8, cars: 1, children: 10
+Sue 154: cars: 6, perfumes: 8, trees: 1
+Sue 155: akitas: 4, perfumes: 6, pomeranians: 2
+Sue 156: pomeranians: 5, cars: 4, akitas: 1
+Sue 157: cats: 5, cars: 9, goldfish: 8
+Sue 158: vizslas: 5, samoyeds: 1, children: 7
+Sue 159: vizslas: 1, perfumes: 3, akitas: 1
+Sue 160: goldfish: 10, pomeranians: 9, perfumes: 5
+Sue 161: samoyeds: 3, trees: 7, cars: 2
+Sue 162: cars: 2, pomeranians: 1, vizslas: 6
+Sue 163: vizslas: 3, perfumes: 5, akitas: 6
+Sue 164: vizslas: 1, trees: 0, akitas: 5
+Sue 165: vizslas: 5, cars: 6, pomeranians: 8
+Sue 166: cars: 10, perfumes: 2, trees: 9
+Sue 167: cars: 10, pomeranians: 6, perfumes: 4
+Sue 168: akitas: 7, trees: 10, goldfish: 7
+Sue 169: akitas: 1, perfumes: 10, cars: 10
+Sue 170: akitas: 5, samoyeds: 8, vizslas: 6
+Sue 171: children: 3, akitas: 2, vizslas: 3
+Sue 172: goldfish: 5, vizslas: 5, perfumes: 9
+Sue 173: perfumes: 5, goldfish: 10, trees: 5
+Sue 174: akitas: 5, vizslas: 2, children: 7
+Sue 175: perfumes: 5, cars: 7, samoyeds: 2
+Sue 176: cars: 8, vizslas: 10, akitas: 7
+Sue 177: perfumes: 7, children: 8, goldfish: 7
+Sue 178: cars: 1, pomeranians: 9, samoyeds: 0
+Sue 179: perfumes: 6, cars: 2, trees: 6
+Sue 180: trees: 3, vizslas: 7, children: 3
+Sue 181: vizslas: 8, samoyeds: 2, trees: 9
+Sue 182: perfumes: 3, cats: 1, children: 5
+Sue 183: akitas: 9, cats: 6, children: 3
+Sue 184: pomeranians: 9, cars: 6, perfumes: 8
+Sue 185: vizslas: 9, trees: 0, akitas: 9
+Sue 186: perfumes: 6, cars: 5, goldfish: 5
+Sue 187: perfumes: 4, cats: 7, vizslas: 2
+Sue 188: akitas: 7, cars: 4, children: 10
+Sue 189: akitas: 0, goldfish: 7, vizslas: 5
+Sue 190: akitas: 5, cars: 5, cats: 6
+Sue 191: cars: 6, children: 0, perfumes: 3
+Sue 192: cats: 2, perfumes: 10, goldfish: 7
+Sue 193: trees: 1, perfumes: 0, cars: 8
+Sue 194: perfumes: 9, children: 4, cats: 6
+Sue 195: akitas: 7, trees: 3, goldfish: 6
+Sue 196: goldfish: 8, cars: 8, samoyeds: 0
+Sue 197: cats: 0, akitas: 10, vizslas: 0
+Sue 198: goldfish: 1, perfumes: 3, cars: 8
+Sue 199: akitas: 10, vizslas: 5, samoyeds: 6
+Sue 200: pomeranians: 9, goldfish: 9, samoyeds: 7
+Sue 201: samoyeds: 0, goldfish: 7, akitas: 6
+Sue 202: vizslas: 0, goldfish: 2, akitas: 1
+Sue 203: goldfish: 3, children: 0, vizslas: 8
+Sue 204: cars: 8, trees: 2, perfumes: 2
+Sue 205: cars: 4, perfumes: 5, goldfish: 8
+Sue 206: vizslas: 3, trees: 2, akitas: 1
+Sue 207: cars: 7, goldfish: 5, trees: 1
+Sue 208: goldfish: 1, cars: 6, vizslas: 8
+Sue 209: cats: 4, trees: 1, children: 0
+Sue 210: cats: 10, children: 0, perfumes: 0
+Sue 211: cars: 4, pomeranians: 7, samoyeds: 5
+Sue 212: cars: 2, pomeranians: 10, trees: 1
+Sue 213: trees: 10, cats: 5, cars: 10
+Sue 214: perfumes: 5, trees: 1, vizslas: 1
+Sue 215: akitas: 10, vizslas: 8, samoyeds: 8
+Sue 216: vizslas: 2, cats: 5, pomeranians: 3
+Sue 217: akitas: 10, perfumes: 0, cats: 10
+Sue 218: trees: 8, cats: 5, vizslas: 2
+Sue 219: goldfish: 10, perfumes: 8, children: 2
+Sue 220: samoyeds: 9, trees: 8, vizslas: 7
+Sue 221: children: 7, trees: 6, cars: 6
+Sue 222: cats: 4, akitas: 5, pomeranians: 0
+Sue 223: trees: 8, goldfish: 2, perfumes: 8
+Sue 224: pomeranians: 9, cars: 8, akitas: 5
+Sue 225: akitas: 10, vizslas: 0, trees: 2
+Sue 226: akitas: 8, cats: 6, cars: 7
+Sue 227: trees: 1, akitas: 3, goldfish: 4
+Sue 228: pomeranians: 6, cats: 3, goldfish: 3
+Sue 229: trees: 10, perfumes: 3, vizslas: 7
+Sue 230: perfumes: 8, cars: 7, akitas: 0
+Sue 231: perfumes: 10, goldfish: 4, cars: 6
+Sue 232: goldfish: 7, trees: 3, cats: 2
+Sue 233: perfumes: 6, trees: 4, akitas: 4
+Sue 234: goldfish: 9, cats: 4, cars: 7
+Sue 235: pomeranians: 6, vizslas: 0, akitas: 6
+Sue 236: samoyeds: 5, cars: 5, children: 4
+Sue 237: vizslas: 10, cars: 4, goldfish: 4
+Sue 238: goldfish: 3, samoyeds: 7, akitas: 2
+Sue 239: cats: 8, children: 2, vizslas: 7
+Sue 240: cars: 9, perfumes: 4, trees: 9
+Sue 241: trees: 8, vizslas: 2, goldfish: 5
+Sue 242: cars: 6, trees: 3, vizslas: 3
+Sue 243: cats: 6, children: 7, cars: 4
+Sue 244: cats: 10, perfumes: 2, goldfish: 7
+Sue 245: akitas: 8, cats: 10, perfumes: 8
+Sue 246: vizslas: 8, akitas: 5, perfumes: 10
+Sue 247: goldfish: 2, vizslas: 5, akitas: 7
+Sue 248: akitas: 3, perfumes: 0, trees: 10
+Sue 249: cats: 4, vizslas: 5, pomeranians: 6
+Sue 250: children: 3, vizslas: 7, perfumes: 2
+Sue 251: cars: 0, pomeranians: 10, perfumes: 0
+Sue 252: akitas: 0, goldfish: 9, cars: 6
+Sue 253: perfumes: 7, cars: 4, samoyeds: 5
+Sue 254: akitas: 9, trees: 10, cars: 4
+Sue 255: samoyeds: 10, children: 6, akitas: 7
+Sue 256: trees: 8, goldfish: 8, perfumes: 8
+Sue 257: goldfish: 3, akitas: 2, perfumes: 6
+Sue 258: cats: 7, trees: 0, vizslas: 1
+Sue 259: perfumes: 7, cars: 7, akitas: 7
+Sue 260: goldfish: 0, vizslas: 0, samoyeds: 2
+Sue 261: vizslas: 2, children: 2, cats: 3
+Sue 262: vizslas: 2, pomeranians: 9, samoyeds: 3
+Sue 263: cats: 1, akitas: 3, vizslas: 1
+Sue 264: pomeranians: 10, trees: 2, goldfish: 7
+Sue 265: samoyeds: 5, trees: 7, perfumes: 4
+Sue 266: perfumes: 10, cars: 1, pomeranians: 3
+Sue 267: trees: 6, goldfish: 1, cars: 0
+Sue 268: cars: 6, samoyeds: 4, pomeranians: 5
+Sue 269: goldfish: 3, vizslas: 3, akitas: 3
+Sue 270: children: 5, cats: 0, cars: 4
+Sue 271: goldfish: 3, perfumes: 8, pomeranians: 7
+Sue 272: samoyeds: 6, cars: 7, perfumes: 10
+Sue 273: trees: 4, cars: 2, vizslas: 7
+Sue 274: samoyeds: 10, perfumes: 9, goldfish: 6
+Sue 275: cars: 4, trees: 2, perfumes: 7
+Sue 276: akitas: 3, perfumes: 9, cars: 9
+Sue 277: akitas: 8, vizslas: 2, cats: 6
+Sue 278: trees: 5, goldfish: 7, akitas: 3
+Sue 279: perfumes: 9, cars: 8, vizslas: 2
+Sue 280: trees: 3, vizslas: 0, children: 0
+Sue 281: cars: 7, trees: 2, cats: 5
+Sue 282: vizslas: 4, cars: 10, cats: 3
+Sue 283: akitas: 10, cats: 3, samoyeds: 9
+Sue 284: trees: 7, children: 5, goldfish: 6
+Sue 285: cars: 2, perfumes: 5, cats: 7
+Sue 286: samoyeds: 5, trees: 10, goldfish: 6
+Sue 287: goldfish: 10, perfumes: 4, trees: 7
+Sue 288: vizslas: 9, trees: 9, perfumes: 0
+Sue 289: trees: 4, goldfish: 9, vizslas: 8
+Sue 290: vizslas: 3, cars: 3, trees: 2
+Sue 291: goldfish: 2, akitas: 2, trees: 2
+Sue 292: children: 1, cars: 0, vizslas: 5
+Sue 293: trees: 5, akitas: 4, goldfish: 6
+Sue 294: akitas: 3, vizslas: 7, pomeranians: 5
+Sue 295: goldfish: 10, vizslas: 3, trees: 1
+Sue 296: cars: 2, trees: 1, akitas: 0
+Sue 297: akitas: 10, vizslas: 6, samoyeds: 2
+Sue 298: children: 5, trees: 1, samoyeds: 9
+Sue 299: perfumes: 9, trees: 6, vizslas: 1
+Sue 300: akitas: 7, pomeranians: 6, vizslas: 6
+Sue 301: cats: 7, children: 6, vizslas: 7
+Sue 302: trees: 2, vizslas: 7, samoyeds: 4
+Sue 303: goldfish: 0, samoyeds: 10, cars: 4
+Sue 304: pomeranians: 9, children: 3, vizslas: 5
+Sue 305: akitas: 8, vizslas: 4, cars: 5
+Sue 306: akitas: 0, perfumes: 2, pomeranians: 10
+Sue 307: akitas: 9, cars: 0, trees: 2
+Sue 308: vizslas: 10, goldfish: 8, akitas: 6
+Sue 309: trees: 0, cats: 6, perfumes: 2
+Sue 310: vizslas: 10, cars: 1, trees: 4
+Sue 311: goldfish: 8, perfumes: 6, cats: 3
+Sue 312: goldfish: 0, children: 1, akitas: 2
+Sue 313: pomeranians: 10, trees: 6, samoyeds: 6
+Sue 314: vizslas: 5, akitas: 4, pomeranians: 2
+Sue 315: goldfish: 7, trees: 0, akitas: 5
+Sue 316: goldfish: 4, vizslas: 5, cars: 7
+Sue 317: perfumes: 7, cats: 10, cars: 4
+Sue 318: samoyeds: 10, cars: 9, trees: 7
+Sue 319: pomeranians: 8, vizslas: 6, cars: 3
+Sue 320: cars: 4, cats: 9, akitas: 4
+Sue 321: cars: 6, trees: 2, perfumes: 6
+Sue 322: goldfish: 1, cats: 2, perfumes: 4
+Sue 323: akitas: 6, cats: 5, cars: 8
+Sue 324: cats: 4, vizslas: 9, akitas: 0
+Sue 325: children: 8, samoyeds: 9, trees: 4
+Sue 326: vizslas: 2, samoyeds: 10, perfumes: 7
+Sue 327: goldfish: 7, pomeranians: 4, akitas: 10
+Sue 328: perfumes: 8, cats: 4, akitas: 10
+Sue 329: trees: 0, cars: 9, goldfish: 3
+Sue 330: trees: 5, samoyeds: 7, perfumes: 8
+Sue 331: cars: 4, perfumes: 2, goldfish: 0
+Sue 332: vizslas: 4, pomeranians: 7, akitas: 1
+Sue 333: akitas: 4, goldfish: 3, perfumes: 0
+Sue 334: samoyeds: 3, akitas: 10, vizslas: 0
+Sue 335: goldfish: 1, akitas: 7, vizslas: 6
+Sue 336: perfumes: 1, goldfish: 1, pomeranians: 8
+Sue 337: children: 5, cars: 4, cats: 4
+Sue 338: vizslas: 5, cars: 10, cats: 3
+Sue 339: trees: 2, goldfish: 3, cars: 1
+Sue 340: trees: 10, goldfish: 6, perfumes: 2
+Sue 341: akitas: 5, trees: 6, cats: 3
+Sue 342: cars: 10, children: 8, goldfish: 0
+Sue 343: cats: 2, akitas: 0, pomeranians: 4
+Sue 344: perfumes: 1, vizslas: 3, cars: 3
+Sue 345: samoyeds: 8, cats: 5, perfumes: 8
+Sue 346: cars: 5, akitas: 10, trees: 2
+Sue 347: vizslas: 9, akitas: 9, cars: 3
+Sue 348: cars: 3, perfumes: 1, pomeranians: 9
+Sue 349: akitas: 1, cars: 4, perfumes: 0
+Sue 350: perfumes: 8, vizslas: 2, trees: 6
+Sue 351: pomeranians: 5, akitas: 9, cats: 8
+Sue 352: pomeranians: 8, vizslas: 3, goldfish: 10
+Sue 353: trees: 2, pomeranians: 0, goldfish: 6
+Sue 354: cats: 5, akitas: 7, goldfish: 6
+Sue 355: goldfish: 6, children: 4, trees: 10
+Sue 356: children: 1, trees: 3, akitas: 7
+Sue 357: trees: 2, samoyeds: 10, goldfish: 3
+Sue 358: samoyeds: 10, cats: 0, goldfish: 0
+Sue 359: perfumes: 3, children: 6, pomeranians: 1
+Sue 360: cars: 10, pomeranians: 1, samoyeds: 5
+Sue 361: samoyeds: 9, pomeranians: 7, perfumes: 6
+Sue 362: goldfish: 6, trees: 8, perfumes: 9
+Sue 363: samoyeds: 10, pomeranians: 9, children: 10
+Sue 364: perfumes: 3, goldfish: 7, cars: 9
+Sue 365: cats: 3, children: 4, samoyeds: 8
+Sue 366: trees: 0, cars: 10, vizslas: 10
+Sue 367: pomeranians: 10, children: 8, perfumes: 2
+Sue 368: cars: 5, vizslas: 0, samoyeds: 3
+Sue 369: trees: 1, goldfish: 8, cars: 8
+Sue 370: vizslas: 0, cars: 2, perfumes: 5
+Sue 371: trees: 2, cars: 3, vizslas: 8
+Sue 372: trees: 10, children: 9, cats: 1
+Sue 373: pomeranians: 3, perfumes: 1, vizslas: 0
+Sue 374: vizslas: 0, perfumes: 6, trees: 0
+Sue 375: vizslas: 7, pomeranians: 1, akitas: 10
+Sue 376: vizslas: 8, trees: 2, cars: 10
+Sue 377: perfumes: 9, cats: 5, goldfish: 5
+Sue 378: cats: 0, akitas: 10, perfumes: 9
+Sue 379: cars: 4, akitas: 1, trees: 1
+Sue 380: cars: 4, perfumes: 5, trees: 3
+Sue 381: goldfish: 3, akitas: 5, samoyeds: 9
+Sue 382: goldfish: 7, perfumes: 5, trees: 5
+Sue 383: akitas: 4, cats: 6, cars: 8
+Sue 384: children: 6, goldfish: 10, akitas: 7
+Sue 385: akitas: 7, vizslas: 5, perfumes: 10
+Sue 386: children: 7, vizslas: 10, akitas: 10
+Sue 387: goldfish: 6, akitas: 7, trees: 2
+Sue 388: vizslas: 6, trees: 1, akitas: 2
+Sue 389: cars: 5, vizslas: 3, akitas: 7
+Sue 390: vizslas: 4, cats: 8, perfumes: 7
+Sue 391: akitas: 3, trees: 0, children: 2
+Sue 392: cats: 7, cars: 3, children: 9
+Sue 393: trees: 10, vizslas: 3, goldfish: 7
+Sue 394: perfumes: 0, goldfish: 7, akitas: 4
+Sue 395: cats: 6, cars: 7, vizslas: 0
+Sue 396: vizslas: 4, perfumes: 6, goldfish: 5
+Sue 397: pomeranians: 8, trees: 1, akitas: 9
+Sue 398: goldfish: 7, pomeranians: 6, samoyeds: 9
+Sue 399: perfumes: 10, cars: 1, trees: 8
+Sue 400: trees: 0, goldfish: 9, children: 6
+Sue 401: trees: 1, cars: 6, pomeranians: 8
+Sue 402: perfumes: 9, cars: 0, vizslas: 10
+Sue 403: samoyeds: 4, akitas: 1, vizslas: 9
+Sue 404: perfumes: 0, trees: 2, cars: 4
+Sue 405: akitas: 0, perfumes: 5, samoyeds: 4
+Sue 406: akitas: 8, vizslas: 6, children: 2
+Sue 407: children: 1, trees: 8, goldfish: 10
+Sue 408: pomeranians: 4, trees: 10, cars: 9
+Sue 409: perfumes: 5, vizslas: 5, akitas: 4
+Sue 410: trees: 1, akitas: 10, vizslas: 6
+Sue 411: samoyeds: 0, goldfish: 9, perfumes: 7
+Sue 412: goldfish: 7, samoyeds: 10, trees: 1
+Sue 413: samoyeds: 0, pomeranians: 10, vizslas: 6
+Sue 414: children: 2, cars: 10, samoyeds: 2
+Sue 415: trees: 2, goldfish: 8, cars: 0
+Sue 416: samoyeds: 4, goldfish: 9, trees: 2
+Sue 417: trees: 8, akitas: 10, perfumes: 3
+Sue 418: samoyeds: 9, goldfish: 2, cars: 1
+Sue 419: akitas: 2, perfumes: 8, trees: 2
+Sue 420: children: 3, goldfish: 6, perfumes: 5
+Sue 421: akitas: 8, perfumes: 2, samoyeds: 6
+Sue 422: vizslas: 10, akitas: 4, pomeranians: 3
+Sue 423: cats: 8, perfumes: 3, trees: 4
+Sue 424: cars: 2, children: 4, pomeranians: 8
+Sue 425: pomeranians: 4, samoyeds: 2, goldfish: 4
+Sue 426: perfumes: 6, cars: 4, goldfish: 4
+Sue 427: akitas: 0, goldfish: 7, perfumes: 5
+Sue 428: perfumes: 4, cars: 3, akitas: 5
+Sue 429: trees: 0, vizslas: 0, goldfish: 1
+Sue 430: perfumes: 4, vizslas: 2, cars: 7
+Sue 431: goldfish: 7, pomeranians: 8, trees: 0
+Sue 432: goldfish: 7, children: 9, trees: 3
+Sue 433: akitas: 1, vizslas: 10, trees: 2
+Sue 434: perfumes: 2, cars: 4, goldfish: 10
+Sue 435: pomeranians: 6, vizslas: 9, trees: 1
+Sue 436: cars: 9, trees: 0, goldfish: 0
+Sue 437: trees: 1, goldfish: 1, vizslas: 8
+Sue 438: goldfish: 7, samoyeds: 8, children: 2
+Sue 439: children: 1, cats: 7, vizslas: 8
+Sue 440: cats: 2, pomeranians: 6, goldfish: 4
+Sue 441: perfumes: 7, cats: 3, vizslas: 6
+Sue 442: akitas: 4, samoyeds: 5, cars: 2
+Sue 443: akitas: 3, perfumes: 3, cats: 9
+Sue 444: perfumes: 10, akitas: 6, trees: 0
+Sue 445: cars: 5, children: 9, perfumes: 8
+Sue 446: vizslas: 10, cars: 3, perfumes: 5
+Sue 447: children: 9, perfumes: 1, cars: 10
+Sue 448: akitas: 0, goldfish: 8, trees: 3
+Sue 449: cars: 7, akitas: 8, children: 3
+Sue 450: cars: 4, akitas: 9, cats: 0
+Sue 451: perfumes: 4, samoyeds: 5, goldfish: 6
+Sue 452: perfumes: 10, akitas: 1, cars: 7
+Sue 453: trees: 1, goldfish: 3, vizslas: 6
+Sue 454: goldfish: 8, pomeranians: 6, trees: 10
+Sue 455: akitas: 5, vizslas: 8, goldfish: 10
+Sue 456: cats: 5, trees: 4, samoyeds: 0
+Sue 457: perfumes: 8, cars: 0, cats: 3
+Sue 458: akitas: 1, trees: 10, vizslas: 2
+Sue 459: vizslas: 6, akitas: 3, children: 10
+Sue 460: perfumes: 7, trees: 9, goldfish: 8
+Sue 461: children: 6, vizslas: 4, perfumes: 5
+Sue 462: vizslas: 6, akitas: 8, perfumes: 9
+Sue 463: goldfish: 8, cars: 4, trees: 10
+Sue 464: pomeranians: 8, cars: 5, vizslas: 0
+Sue 465: cats: 10, goldfish: 7, akitas: 1
+Sue 466: cats: 2, children: 1, cars: 6
+Sue 467: perfumes: 3, samoyeds: 6, cars: 0
+Sue 468: samoyeds: 10, pomeranians: 6, trees: 2
+Sue 469: children: 2, perfumes: 2, pomeranians: 4
+Sue 470: cats: 1, perfumes: 5, vizslas: 9
+Sue 471: vizslas: 5, perfumes: 2, akitas: 7
+Sue 472: samoyeds: 8, goldfish: 6, cats: 1
+Sue 473: goldfish: 10, perfumes: 9, cars: 4
+Sue 474: samoyeds: 0, cars: 4, vizslas: 4
+Sue 475: trees: 2, cars: 7, akitas: 8
+Sue 476: vizslas: 3, perfumes: 5, goldfish: 1
+Sue 477: cats: 7, cars: 4, trees: 1
+Sue 478: vizslas: 8, akitas: 3, goldfish: 0
+Sue 479: cars: 6, cats: 3, perfumes: 2
+Sue 480: goldfish: 1, children: 9, vizslas: 3
+Sue 481: pomeranians: 5, vizslas: 1, cars: 10
+Sue 482: children: 5, perfumes: 5, cats: 1
+Sue 483: perfumes: 2, goldfish: 7, trees: 6
+Sue 484: akitas: 2, goldfish: 4, perfumes: 10
+Sue 485: samoyeds: 3, goldfish: 0, akitas: 1
+Sue 486: trees: 8, vizslas: 9, goldfish: 0
+Sue 487: goldfish: 8, samoyeds: 0, trees: 0
+Sue 488: perfumes: 7, cars: 5, trees: 0
+Sue 489: vizslas: 3, pomeranians: 2, perfumes: 5
+Sue 490: cars: 5, perfumes: 5, akitas: 5
+Sue 491: children: 8, trees: 1, pomeranians: 4
+Sue 492: pomeranians: 0, akitas: 1, vizslas: 8
+Sue 493: akitas: 10, perfumes: 10, samoyeds: 8
+Sue 494: perfumes: 6, vizslas: 4, cats: 6
+Sue 495: children: 6, pomeranians: 5, samoyeds: 4
+Sue 496: vizslas: 1, trees: 5, akitas: 1
+Sue 497: vizslas: 10, perfumes: 10, pomeranians: 3
+Sue 498: samoyeds: 3, trees: 2, cars: 5
+Sue 499: cats: 6, children: 3, perfumes: 0
+Sue 500: pomeranians: 10, cats: 3, vizslas: 5
diff --git a/2015/day16/main.go b/2015/day16/main.go
new file mode 100644
index 0000000..492210b
--- /dev/null
+++ b/2015/day16/main.go
@@ -0,0 +1,70 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+var req map[string]int
+
+func main() {
+	var input []string
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		input = append(input, scanner.Text())
+	}
+
+	req = make(map[string]int)
+	req["children"] = 3
+	req["cats"] = 7
+	req["samoyeds"] = 2
+	req["pomeranians"] = 3
+	req["akitas"] = 0
+	req["vizslas"] = 0
+	req["goldfish"] = 5
+	req["trees"] = 3
+	req["cars"] = 2
+	req["perfumes"] = 1
+
+	for i := range input {
+		if checkString(input[i]) {
+			fmt.Println(input[i])
+			break
+		}
+	}
+}
+
+func checkString(s string) bool {
+	split := strings.SplitN(s, ": ", 2)
+	items := strings.Split(split[1], ", ")
+	for i := range items {
+		tst := strings.Split(items[i], ": ")
+		if tst[0] == "trees" || tst[0] == "cats" {
+			if req[tst[0]] > mustAtoi(tst[1]) {
+				return false
+			}
+		} else if tst[0] == "pomeranians" || tst[0] == "goldfish" {
+			if req[tst[0]] < mustAtoi(tst[1]) {
+				return false
+			}
+		} else {
+			if req[tst[0]] != mustAtoi(tst[1]) {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+		os.Exit(1)
+	}
+	return i
+}
diff --git a/2015/day16/problem b/2015/day16/problem
new file mode 100644
index 0000000..c0e29bd
--- /dev/null
+++ b/2015/day16/problem
@@ -0,0 +1,98 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 16: Aunt Sue ---
+
+   Your Aunt Sue has given you a wonderful gift, and you'd like to send her a thank you card.
+   However, there's a small problem: she signed it "From, Aunt Sue".
+
+   You have 500 Aunts named "Sue".
+
+   So, to avoid sending the card to the wrong person, you need to figure out which Aunt Sue (which
+   you conveniently number 1 to 500, for sanity) gave you the gift. You open the present and, as
+   luck would have it, good ol' Aunt Sue got you a My First Crime Scene Analysis Machine! Just
+   what you wanted. Or needed, as the case may be.
+
+   The My First Crime Scene Analysis Machine (MFCSAM for short) can detect a few specific
+   compounds in a given sample, as well as how many distinct kinds of those compounds there are.
+   According to the instructions, these are what the MFCSAM can detect:
+
+     • children, by human DNA age analysis.
+     • cats. It doesn't differentiate individual breeds.
+     • Several seemingly random breeds of dog: samoyeds, pomeranians, akitas, and vizslas.
+     • goldfish. No other kinds of fish.
+     • trees, all in one group.
+     • cars, presumably by exhaust or gasoline or something.
+     • perfumes, which is handy, since many of your Aunts Sue wear a few kinds.
+
+   In fact, many of your Aunts Sue have many of these. You put the wrapping from the gift into the
+   MFCSAM. It beeps inquisitively at you a few times and then prints out a message on ticker tape:
+
+ children: 3
+ cats: 7
+ samoyeds: 2
+ pomeranians: 3
+ akitas: 0
+ vizslas: 0
+ goldfish: 5
+ trees: 3
+ cars: 2
+ perfumes: 1
+
+   You make a list of the things you can remember about each Aunt Sue. Things missing from your
+   list aren't zero - you simply don't remember the value.
+
+   What is the number of the Sue that got you the gift?
+
+   Your puzzle answer was 373.
+
+--- Part Two ---
+
+   As you're about to send the thank you note, something in the MFCSAM's instructions catches your
+   eye. Apparently, it has an outdated retroencabulator, and so the output from the machine isn't
+   exact values - some of them indicate ranges.
+
+   In particular, the cats and trees readings indicates that there are greater than that many (due
+   to the unpredictable nuclear decay of cat dander and tree pollen), while the pomeranians and
+   goldfish readings indicate that there are fewer than that many (due to the modial interaction
+   of magnetoreluctance).
+
+   What is the number of the real Aunt Sue?
+
+   Your puzzle answer was 260.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . https://en.wikipedia.org/wiki/Samoyed_%28dog%29
+   . https://en.wikipedia.org/wiki/Pomeranian_%28dog%29
+   . https://en.wikipedia.org/wiki/Akita_%28dog%29
+   . https://en.wikipedia.org/wiki/Vizsla
+   . https://en.wikipedia.org/wiki/Ticker_tape
+   . https://www.youtube.com/watch?v=RXJKdh1KZ0w
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/16/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Aunt+Sue%22+%2D+Day+16+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F16&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F16
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F16&title=I%27ve+completed+%22Aunt+Sue%22+%2D+Day+16+%2D+Advent+of+Code
diff --git a/2015/day17/input b/2015/day17/input
new file mode 100644
index 0000000..6b25a72
--- /dev/null
+++ b/2015/day17/input
@@ -0,0 +1,20 @@
+33
+14
+18
+20
+45
+35
+16
+35
+1
+13
+18
+13
+50
+44
+48
+6
+24
+41
+30
+42
diff --git a/2015/day17/main.go b/2015/day17/main.go
new file mode 100644
index 0000000..1fdaef7
--- /dev/null
+++ b/2015/day17/main.go
@@ -0,0 +1,151 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+type container struct {
+	value int
+	name  string
+}
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Println("Usage: day17 <liters>")
+		os.Exit(1)
+	}
+	total := mustAtoi(os.Args[1])
+
+	var input []string
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		input = append(input, scanner.Text())
+	}
+
+	var containers []container
+	for i := range input {
+		val := mustAtoi(input[i])
+		// Generate a name for this container
+		var u int
+		for j := range containers {
+			if containers[j].value == val {
+				u++
+			}
+		}
+		n := strconv.Itoa(val) + "-" + strconv.Itoa(u)
+		containers = append(containers, container{value: val, name: n})
+	}
+	fmt.Println("All Containers: ")
+	fmt.Println(containers)
+	fmt.Println()
+
+	fmt.Println("Finding Combinations...")
+	res := findCombis(total, containers)
+	var final [][]container
+	fmt.Println()
+	fmt.Println("Sorting Results...")
+	for i := 0; i < len(res); i++ {
+		tst := sortContainers(res[i])
+		var dup bool
+		for j := 0; j < len(final); j++ {
+			if isEqual(tst, final[j]) {
+				dup = true
+			}
+		}
+		if !dup {
+			final = append(final, tst)
+		}
+	}
+	minNum := len(final[0])
+	var minConfig [][]container
+	for i := 0; i < len(final); i++ {
+		if len(final[i]) < minNum {
+			minNum = len(final[i])
+		}
+	}
+	for i := 0; i < len(final); i++ {
+		if len(final[i]) == minNum {
+			minConfig = append(minConfig, final[i])
+		}
+	}
+
+	fmt.Print("Total Combinations: ")
+	fmt.Println(strconv.Itoa(len(final)))
+
+	fmt.Println("Minimum Containers: " + strconv.Itoa(minNum))
+	fmt.Println("Num Configurations: " + strconv.Itoa(len(minConfig)))
+}
+
+func findCombis(total int, containers []container) [][]container {
+	var ret [][]container
+
+	for i := range containers {
+		if total == containers[i].value {
+			fmt.Print("O")
+			ret = append(ret, []container{containers[i]})
+		}
+		if containers[i].value < total {
+			fmt.Print(".")
+			bld := []container{containers[i]}
+
+			var pass []container
+			for j := range containers {
+				if i != j {
+					pass = append(pass, containers[j])
+				}
+			}
+
+			tmp := findCombis((total - containers[i].value), pass)
+
+			for idx := 0; idx < len(tmp); idx++ {
+				tmp[idx] = append(bld, tmp[idx]...)
+			}
+			ret = append(ret, tmp...)
+		}
+	}
+	return ret
+}
+
+func sortContainers(c []container) []container {
+	n := len(c)
+	swapped := true
+	for swapped {
+		swapped = false
+		for i := 1; i <= n-1; i++ {
+			if strings.Compare(c[i-1].name, c[i].name) > 0 {
+				tmp := c[i-1]
+				c[i-1] = c[i]
+				c[i] = tmp
+				swapped = true
+			}
+		}
+		n = n - 1
+	}
+	return c
+}
+
+func isEqual(a, b []container) bool {
+	if len(a) != len(b) {
+		return false
+	}
+	for i := 0; i < len(a); i++ {
+		if a[i].name != b[i].name {
+			return false
+		}
+	}
+	return true
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+		os.Exit(1)
+	}
+	return i
+}
diff --git a/2015/day17/problem b/2015/day17/problem
new file mode 100644
index 0000000..f15ca9a
--- /dev/null
+++ b/2015/day17/problem
@@ -0,0 +1,64 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 17: No Such Thing as Too Much ---
+
+   The elves bought too much eggnog again - 150 liters this time. To fit it all into your
+   refrigerator, you'll need to move it into smaller containers. You take an inventory of the
+   capacities of the available containers.
+
+   For example, suppose you have containers of size 20, 15, 10, 5, and 5 liters. If you need to
+   store 25 liters, there are four ways to do it:
+
+     • 15 and 10
+     • 20 and 5 (the first 5)
+     • 20 and 5 (the second 5)
+     • 15, 5, and 5
+
+   Filling all containers entirely, how many different combinations of containers can exactly fit
+   all 150 liters of eggnog?
+
+   Your puzzle answer was 1304.
+
+--- Part Two ---
+
+   While playing with all the containers in the kitchen, another load of eggnog arrives! The
+   shipping and receiving department is requesting as many containers as you can spare.
+
+   Find the minimum number of containers that can exactly fit all 150 liters of eggnog. How many
+   different ways can you fill that number of containers and still hold exactly 150 litres?
+
+   In the example above, the minimum number of containers was two. There were three ways to use
+   that many containers, and so the answer there would be 3.
+
+   Your puzzle answer was 18.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/17/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22No+Such+Thing+as+Too+Much%22+%2D+Day+17+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F17&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F17
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F17&title=I%27ve+completed+%22No+Such+Thing+as+Too+Much%22+%2D+Day+17+%2D+Advent+of+Code
diff --git a/2015/day17/sample_input b/2015/day17/sample_input
new file mode 100644
index 0000000..77f10f3
--- /dev/null
+++ b/2015/day17/sample_input
@@ -0,0 +1,5 @@
+20
+15
+10
+5
+5
diff --git a/2015/day18/day18.gif b/2015/day18/day18.gif
new file mode 100644
index 0000000..5027850
Binary files /dev/null and b/2015/day18/day18.gif differ
diff --git a/2015/day18/input b/2015/day18/input
new file mode 100644
index 0000000..56534e3
--- /dev/null
+++ b/2015/day18/input
@@ -0,0 +1,100 @@
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+..##.##.#.##.###....###.##.#.###.#...#....#.####..###..###.#.#..#...##.#.#.#..##.###..###.#.##...###
+######..######..##..##.#.#.##.##.#..##..#.#.#.##..#.#...#...#.#.#..######.#..#.#.######..#......##.#
+#.#####.....#.......#########..###.##...#...##.#.#..#...#####...#...#..#.###.#..#.#...###.#.#.#...#.
+#....##....###...##.##.#...##.........##.#.#..#.#.##.#.######.#####..#..###.###.#...#.#.##.######...
+#.#...###.#.###.##.#.######.#######.###.##..#.#.#...######.##.####.##..#.#.#.#......##..##.........#
+..###..##....#.....##...#.#.###.#.#.....##.#...###.####.#...#...##..##.#.#.####..###...######....#.#
+..###.#.##.####.#..#.##....##..#####....#..##.##.#..#######...#.####...##.#.#.##.........#....#....#
+.##.#...#.####..#.#...#.##..######.##..##.#.###.##..###.###....##..#.##.##..##.#...###.##.##.###....
+#...###.###.#..#....#.......#..#.....###..#.###.##.##....#.####.#.####.##..##..#..#.....#....##.#.#.
+.##.#..#..#.##.......#.####.#######.....#.##.##.#.....#.#..#....######.#..###.##.##.....#.####..##.#
+###..#.###.#..####.....##....#..####....#.##.##..#...######.#########...#.#....##...###.#..#.##...#.
+#..###..##..#.#.##.###.#.#.##...###.#...##.##..#.###....###..#.#...#.###..######.#..#.###..#..#..#.#
+.#........##.#.###..###.#.#.##.....##.##.#.#...##..#.##....###..#.#.#.#.##....#.##..#.#...###...#...
+####.####..#....#.#.#..#..##.......##.####...###.##..#.#.##.#..##..######.......##.#.##..#...#.....#
+..#..#..###..##.##..######.#..###..###.#.##..##.#..#####.#.#.#.##..#.##..##.##......####.#..........
+...##.##..###.#...###....#.#.#.#.....#.##.....##...#...#......####...##.##....##.#..#.####.#..###.#.
+..#.....####.#.###.#####..#..###..#..#.#...#####...###.###....#.###..#...#..#..#.#..#.##..##.#.#....
+..##.#####...###.###.........#....##.####.##..#.#..#.#...#...##.##.##..#.#.##.########......#####...
+...###.#.#..#...#.###.###.......##.###.#..#.##########...#..#.#.#.##.#.###...######..#.#...###.##...
+.#.#.#######.#..##.##..##...#...####...#..#####.#..##...###.#.#...#.##...#......#..##.####..#.....##
+.##.##.#.#......#######..###.....##.#.##..###......#....####...#.###.#.##.#........#..#....##.....##
+#...#.###.#.##...##.####....#...#.###..#.#.....#.#....#.#.#.##...#.#..#####.#.#..#..#..#....#...####
+.....##...###......#####..##.##.##...##.#.#####..##...#.#.#.#.###...###.##.####..#.#..#.#..#.####.##
+#..#..##.#.##.#.##.#.#.#..###....###.##.#.##.#...#.#..#...#....###.#..#.#.######.#...####..#..##.#.#
+#..#.#..#...###.#..##.#...#...##.#......#...#..#..####..##.....#.###...#.#..#.#....#.#####.##.###...
+###....#.#..#.#..###..#.##......#...#..#..##.#..###..##..#..#.####..#...########..##.#.##.#.#.#...#.
+.#.#.##.##.###..#...#.#....#..#.##..#.#.#.#.##.##.#####...#........####..###..####.#####..#.##.#.##.
\ No newline at end of file
diff --git a/2015/day18/main.go b/2015/day18/main.go
new file mode 100644
index 0000000..b6f05ad
--- /dev/null
+++ b/2015/day18/main.go
@@ -0,0 +1,211 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"os/exec"
+	"strconv"
+	"strings"
+	"time"
+)
+
+var lights [][]bool
+
+func main() {
+	ticks := -1
+	speed := 2
+	var hideSim, lockedCorners bool
+	for i := range os.Args {
+		if os.Args[i] == "-help" {
+			fmt.Println("Usage: day18 [-ticks=<num>] [-speed=<num>]")
+			fmt.Println("\t-ticks=<num>\tSpecify how many iterations should be performed")
+			fmt.Println("\t\t\t\tIf not manually set, run forever.")
+			fmt.Println("\t-speed=<num>\tSpecify how many times/second we iterate")
+			fmt.Println("\t-hide\t\tHide the actual simulation (for AoC)")
+			fmt.Println("\t-lockcorners\t\tLock the corner lights 'on' (for AoC pt 2)")
+			os.Exit(1)
+		}
+		if j := strings.Index(os.Args[i], "="); j > 0 {
+			flagKey := os.Args[i][:j]
+			flagVal := os.Args[i][j+1:]
+			if flagKey == "-ticks" {
+				ticks = mustAtoi(flagVal)
+			} else if flagKey == "-speed" {
+				speed = mustAtoi(flagVal)
+			}
+		}
+		if os.Args[i] == "-hide" {
+			hideSim = true
+		}
+		if os.Args[i] == "-lockcorners" {
+			lockedCorners = true
+		}
+	}
+	if hideSim && ticks == -1 {
+		// Doesn't make sense to run this configuration
+		fmt.Println("You asked to run indefinitely and hide the simulation...")
+		fmt.Println("Refusing to needlessly consume your CPU.")
+		os.Exit(1)
+	}
+
+	var input []string
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		input = append(input, scanner.Text())
+	}
+
+	for i := range input {
+		var bldRow []bool
+		for j := range input[i] {
+			bldRow = append(bldRow, (input[i][j] == '#'))
+		}
+		lights = append(lights, bldRow)
+	}
+
+	if !hideSim {
+		cls()
+		printLights(lights)
+	}
+	for i := 0; i < ticks || ticks == -1; i++ {
+		if lockedCorners {
+			lights = lockCorners(lights)
+		}
+		lights = tick(lights)
+		if lockedCorners {
+			lights = lockCorners(lights)
+		}
+		if !hideSim {
+			cls()
+			printLights(lights)
+		}
+		if !hideSim {
+			// No reason to sleep if we're hiding the simulation
+			time.Sleep(time.Second / time.Duration(speed))
+		}
+	}
+
+	fmt.Println("After " + strconv.Itoa(ticks) + " ticks, " + strconv.Itoa(countLights(lights)) + " are on")
+}
+
+func lockCorners(c [][]bool) [][]bool {
+	c[0][0] = true
+	c[0][len(c[0])-1] = true
+	c[len(c)-1][0] = true
+	c[len(c)-1][len(c[0])-1] = true
+	return c
+}
+
+func cls() {
+	cmd := exec.Command("clear")
+	cmd.Stdout = os.Stdout
+	cmd.Run()
+}
+
+func printLights(curr [][]bool) {
+	for i := range curr {
+		for j := range curr {
+			if curr[i][j] {
+				fmt.Print("#")
+			} else {
+				fmt.Print(".")
+			}
+		}
+		fmt.Println()
+	}
+}
+
+func tick(curr [][]bool) [][]bool {
+	var next [][]bool
+	for i := range curr {
+		var bldRow []bool
+		for j := range curr[i] {
+			num := checkNeighbors(curr, i, j)
+			var newVal bool
+			if curr[i][j] {
+				// On proc
+				if num == 2 || num == 3 {
+					newVal = true
+				}
+			} else {
+				// Off proc
+				if num == 3 {
+					newVal = true
+				}
+			}
+			bldRow = append(bldRow, newVal)
+		}
+		next = append(next, bldRow)
+	}
+	return next
+}
+
+// Returns how many neighbors are on
+func checkNeighbors(curr [][]bool, i, j int) int {
+	var ret int
+	// nw
+	if isOn(curr, (i - 1), (j - 1)) {
+		ret++
+	}
+	// n
+	if isOn(curr, (i - 1), j) {
+		ret++
+	}
+	// ne
+	if isOn(curr, (i - 1), (j + 1)) {
+		ret++
+	}
+	// w
+	if isOn(curr, i, (j - 1)) {
+		ret++
+	}
+	// e
+	if isOn(curr, i, (j + 1)) {
+		ret++
+	}
+	// sw
+	if isOn(curr, (i + 1), (j - 1)) {
+		ret++
+	}
+	// s
+	if isOn(curr, (i + 1), j) {
+		ret++
+	}
+	// se
+	if isOn(curr, (i + 1), (j + 1)) {
+		ret++
+	}
+	return ret
+}
+
+func isOn(curr [][]bool, i, j int) bool {
+	if i < 0 || i >= len(curr) {
+		return false
+	}
+	if j < 0 || j >= len(curr[i]) {
+		return false
+	}
+	return curr[i][j]
+}
+
+func countLights(c [][]bool) int {
+	var ttl int
+	for i := range c {
+		for j := range c[i] {
+			if c[i][j] {
+				ttl++
+			}
+		}
+	}
+	return ttl
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+		os.Exit(1)
+	}
+	return i
+}
diff --git a/2015/day18/problem b/2015/day18/problem
new file mode 100644
index 0000000..01dec05
--- /dev/null
+++ b/2015/day18/problem
@@ -0,0 +1,180 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 18: Like a GIF For Your Yard ---
+
+   After the million lights incident, the fire code has gotten stricter: now, at most ten thousand
+   lights are allowed. You arrange them in a 100x100 grid.
+
+   Never one to let you down, Santa again mails you instructions on the ideal lighting
+   configuration. With so few lights, he says, you'll have to resort to animation.
+
+   Start by setting your lights to the included initial configuration (your puzzle input). A #
+   means "on", and a . means "off".
+
+   Then, animate your grid in steps, where each step decides the next configuration based on the
+   current one. Each light's next state (either on or off) depends on its current state and the
+   current states of the eight lights adjacent to it (including diagonals). Lights on the edge of
+   the grid might have fewer than eight neighbors; the missing ones always count as "off".
+
+   For example, in a simplified 6x6 grid, the light marked A has the neighbors numbered 1 through
+   8, and the light marked B, which is on an edge, only has the neighbors marked 1 through 5:
+
+ 1B5...
+ 234...
+ ......
+ ..123.
+ ..8A4.
+ ..765.
+
+   The state a light should have next is based on its current state (on or off) plus the number of
+   neighbors that are on:
+
+     • A light which is on stays on when 2 or 3 neighbors are on, and turns off otherwise.
+     • A light which is off turns on if exactly 3 neighbors are on, and stays off otherwise.
+
+   All of the lights update simultaneously; they all consider the same current state before moving
+   to the next.
+
+   Here's a few steps from an example configuration of another 6x6 grid:
+
+ Initial state:
+ .#.#.#
+ ...##.
+ #....#
+ ..#...
+ #.#..#
+ ####..
+
+ After 1 step:
+ ..##..
+ ..##.#
+ ...##.
+ ......
+ #.....
+ #.##..
+
+ After 2 steps:
+ ..###.
+ ......
+ ..###.
+ ......
+ .#....
+ .#....
+
+ After 3 steps:
+ ...#..
+ ......
+ ...#..
+ ..##..
+ ......
+ ......
+
+ After 4 steps:
+ ......
+ ......
+ ..##..
+ ..##..
+ ......
+ ......
+
+   After 4 steps, this example has four lights on.
+
+   In your grid of 100x100 lights, given your initial configuration, how many lights are on after
+   100 steps?
+
+   Your puzzle answer was 814.
+
+--- Part Two ---
+
+   You flip the instructions over; Santa goes on to point out that this is all just an
+   implementation of Conway's Game of Life. At least, it was, until you notice that something's
+   wrong with the grid of lights you bought: four lights, one in each corner, are stuck on and
+   can't be turned off. The example above will actually run like this:
+
+ Initial state:
+ ##.#.#
+ ...##.
+ #....#
+ ..#...
+ #.#..#
+ ####.#
+
+ After 1 step:
+ #.##.#
+ ####.#
+ ...##.
+ ......
+ #...#.
+ #.####
+
+ After 2 steps:
+ #..#.#
+ #....#
+ .#.##.
+ ...##.
+ .#..##
+ ##.###
+
+ After 3 steps:
+ #...##
+ ####.#
+ ..##.#
+ ......
+ ##....
+ ####.#
+
+ After 4 steps:
+ #.####
+ #....#
+ ...#..
+ .##...
+ #.....
+ #.#..#
+
+ After 5 steps:
+ ##.###
+ .##..#
+ .##...
+ .##...
+ #.#...
+ ##...#
+
+   After 5 steps, this example now has 17 lights on.
+
+   In your grid of 100x100 lights, given your initial configuration, but with the four corners
+   always in the on state, how many lights are on after 100 steps?
+
+   Your puzzle answer was 924.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/day/6
+   . https://en.wikipedia.org/wiki/Conway's_Game_of_Life
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/18/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Like+a+GIF+For+Your+Yard%22+%2D+Day+18+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F18&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F18
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F18&title=I%27ve+completed+%22Like+a+GIF+For+Your+Yard%22+%2D+Day+18+%2D+Advent+of+Code
diff --git a/2015/day18/sample_input b/2015/day18/sample_input
new file mode 100644
index 0000000..51dc5ce
--- /dev/null
+++ b/2015/day18/sample_input
@@ -0,0 +1,6 @@
+.#.#.#
+...##.
+#....#
+..#...
+#.#..#
+####..
\ No newline at end of file
diff --git a/2015/day19/input b/2015/day19/input
new file mode 100644
index 0000000..b0515c0
--- /dev/null
+++ b/2015/day19/input
@@ -0,0 +1,45 @@
+Al => ThF
+Al => ThRnFAr
+B => BCa
+B => TiB
+B => TiRnFAr
+Ca => CaCa
+Ca => PB
+Ca => PRnFAr
+Ca => SiRnFYFAr
+Ca => SiRnMgAr
+Ca => SiTh
+F => CaF
+F => PMg
+F => SiAl
+H => CRnAlAr
+H => CRnFYFYFAr
+H => CRnFYMgAr
+H => CRnMgYFAr
+H => HCa
+H => NRnFYFAr
+H => NRnMgAr
+H => NTh
+H => OB
+H => ORnFAr
+Mg => BF
+Mg => TiMg
+N => CRnFAr
+N => HSi
+O => CRnFYFAr
+O => CRnMgAr
+O => HP
+O => NRnFAr
+O => OTi
+P => CaP
+P => PTi
+P => SiRnFAr
+Si => CaSi
+Th => ThCa
+Ti => BP
+Ti => TiTi
+e => HF
+e => NAl
+e => OMg
+
+CRnSiRnCaPTiMgYCaPTiRnFArSiThFArCaSiThSiThPBCaCaSiRnSiRnTiTiMgArPBCaPMgYPTiRnFArFArCaSiRnBPMgArPRnCaPTiRnFArCaSiThCaCaFArPBCaCaPTiTiRnFArCaSiRnSiAlYSiThRnFArArCaSiRnBFArCaCaSiRnSiThCaCaCaFYCaPTiBCaSiThCaSiThPMgArSiRnCaPBFYCaCaFArCaCaCaCaSiThCaSiRnPRnFArPBSiThPRnFArSiRnMgArCaFYFArCaSiRnSiAlArTiTiTiTiTiTiTiRnPMgArPTiTiTiBSiRnSiAlArTiTiRnPMgArCaFYBPBPTiRnSiRnMgArSiThCaFArCaSiThFArPRnFArCaSiRnTiBSiThSiRnSiAlYCaFArPRnFArSiThCaFArCaCaSiThCaCaCaSiRnPRnCaFArFYPMgArCaPBCaPBSiRnFYPBCaFArCaSiAl
diff --git a/2015/day19/main.go b/2015/day19/main.go
new file mode 100644
index 0000000..afbabfc
--- /dev/null
+++ b/2015/day19/main.go
@@ -0,0 +1,123 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	var input []string
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		input = append(input, scanner.Text())
+	}
+
+	transforms := make(map[string][]string)
+	var stMolecule string
+
+	for i := range input {
+		if strings.Contains(input[i], "=>") {
+			parts := strings.Split(input[i], " => ")
+			transforms[parts[0]] = append(transforms[parts[0]], parts[1])
+		} else if len(input[i]) > 0 {
+			// Must be the calibration molecule
+			stMolecule = input[i]
+		}
+	}
+
+	fmt.Println("*** CALIBRATION ***")
+	res := calibrate(stMolecule, transforms)
+	fmt.Println("Found " + strconv.Itoa(len(res)) + " combinations")
+	fmt.Println("\n")
+	fmt.Println("*** MANUFACTURING ***")
+	backTrans := reverseTransforms(transforms)
+	manufacture(stMolecule, backTrans, 0)
+}
+
+// stepBack takes an ending string and a reversed list of the transformations
+func manufacture(molecule string, transforms map[string][]string, steps int) {
+	fmt.Println(molecule)
+
+	if molecule == "e" {
+		fmt.Println("Found in " + strconv.Itoa(steps) + " steps")
+		os.Exit(0)
+	}
+
+	for k, v := range transforms {
+		if strings.Contains(molecule, k) {
+			for i := range v {
+				tstVal := strings.Replace(molecule, k, v[i], 1)
+				manufacture(tstVal, transforms, steps+1)
+			}
+		}
+	}
+}
+
+func reverseTransforms(t map[string][]string) map[string][]string {
+	ret := make(map[string][]string)
+	for v := range t {
+		for j := range t[v] {
+			ret[t[v][j]] = append(ret[t[v][j]], v)
+		}
+	}
+	return ret
+}
+
+func calibrate(molecule string, transforms map[string][]string) []string {
+	var ret []string
+	atoms := getAtomsFromMolecule(molecule)
+
+	for i := range atoms {
+		// Build a string of atoms before i
+		start := strings.Join(atoms[:i], "")
+		// And all after i too
+		end := strings.Join(atoms[i+1:], "")
+		// Find all transforms for atoms[i]
+		if v, ok := transforms[atoms[i]]; ok {
+			for j := range v {
+				ret = uniqueInsert(ret, start+v[j]+end)
+				//ret = append(ret, start+v[j]+end)
+			}
+		}
+	}
+	return ret
+}
+
+func getAtomsFromMolecule(molecule string) []string {
+	var atoms []string
+	var bldAtom string
+
+	for i := range molecule {
+		if molecule[i] >= 'A' && molecule[i] <= 'Z' {
+			if len(bldAtom) > 0 {
+				atoms = append(atoms, bldAtom)
+			}
+			bldAtom = string(molecule[i])
+			continue
+		}
+		bldAtom = bldAtom + string(molecule[i])
+	}
+	return append(atoms, bldAtom)
+}
+
+func uniqueInsert(curr []string, ins string) []string {
+	for i := range curr {
+		if curr[i] == ins {
+			return curr
+		}
+	}
+	return append(curr, ins)
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+		os.Exit(1)
+	}
+	return i
+}
diff --git a/2015/day19/problem b/2015/day19/problem
new file mode 100644
index 0000000..534594d
--- /dev/null
+++ b/2015/day19/problem
@@ -0,0 +1,107 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 19: Medicine for Rudolph ---
+
+   Rudolph the Red-Nosed Reindeer is sick! His nose isn't shining very brightly, and he needs
+   medicine.
+
+   Red-Nosed Reindeer biology isn't similar to regular reindeer biology; Rudolph is going to need
+   custom-made medicine. Unfortunately, Red-Nosed Reindeer chemistry isn't similar to regular
+   reindeer chemistry, either.
+
+   The North Pole is equipped with a Red-Nosed Reindeer nuclear fusion/fission plant, capable of
+   constructing any Red-Nosed Reindeer molecule you need. It works by starting with some input
+   molecule and then doing a series of replacements, one per step, until it has the right
+   molecule.
+
+   However, the machine has to be calibrated before it can be used. Calibration involves
+   determining the number of molecules that can be generated in one step from a given starting
+   point.
+
+   For example, imagine a simpler machine that supports only the following replacements:
+
+ H => HO
+ H => OH
+ O => HH
+
+   Given the replacements above and starting with HOH, the following molecules could be generated:
+
+     • HOOH (via H => HO on the first H).
+     • HOHO (via H => HO on the second H).
+     • OHOH (via H => OH on the first H).
+     • HOOH (via H => OH on the second H).
+     • HHHH (via O => HH).
+
+   So, in the example above, there are 4 distinct molecules (not five, because HOOH appears twice)
+   after one replacement from HOH. Santa's favorite molecule, HOHOHO, can become 7 distinct
+   molecules (over nine replacements: six from H, and three from O).
+
+   The machine replaces without regard for the surrounding characters. For example, given the
+   string H2O, the transition H => OO would result in OO2O.
+
+   Your puzzle input describes all of the possible replacements and, at the bottom, the medicine
+   molecule for which you need to calibrate the machine. How many distinct molecules can be
+   created after all the different ways you can do one replacement on the medicine molecule?
+
+   Your puzzle answer was 518.
+
+--- Part Two ---
+
+   Now that the machine is calibrated, you're ready to begin molecule fabrication.
+
+   Molecule fabrication always begins with just a single electron, e, and applying replacements
+   one at a time, just like the ones during calibration.
+
+   For example, suppose you have the following replacements:
+
+ e => H
+ e => O
+ H => HO
+ H => OH
+ O => HH
+
+   If you'd like to make HOH, you start with e, and then make the following replacements:
+
+     • e => O to get O
+     • O => HH to get HH
+     • H => OH (on the second H) to get HOH
+
+   So, you could make HOH after 3 steps. Santa's favorite molecule, HOHOHO, can be made in 6
+   steps.
+
+   How long will it take to make the medicine? Given the available replacements and the medicine
+   molecule in your puzzle input, what is the fewest number of steps to go from e to the medicine
+   molecule?
+
+   Your puzzle answer was 200.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/19/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Medicine+for+Rudolph%22+%2D+Day+19+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F19&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F19
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F19&title=I%27ve+completed+%22Medicine+for+Rudolph%22+%2D+Day+19+%2D+Advent+of+Code
diff --git a/2015/day19/sample_input b/2015/day19/sample_input
new file mode 100644
index 0000000..1798c27
--- /dev/null
+++ b/2015/day19/sample_input
@@ -0,0 +1,5 @@
+H => HO
+H => OH
+O => HH
+
+HOH
diff --git a/2015/day20/input b/2015/day20/input
new file mode 100644
index 0000000..f0d8336
--- /dev/null
+++ b/2015/day20/input
@@ -0,0 +1 @@
+36000000
diff --git a/2015/day20/main.go b/2015/day20/main.go
new file mode 100644
index 0000000..d4a26ed
--- /dev/null
+++ b/2015/day20/main.go
@@ -0,0 +1,112 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Println("Usage: day20 <number>")
+		os.Exit(1)
+	}
+	numPresents := mustAtoi(os.Args[1])
+
+	// 831600 was the lowest for part 1
+	// Part 2 won't be lower, so...
+	// 884520 for Part 2?
+	houseNum := 884500
+	k := receivedPresentsPt2(houseNum)
+	lastFound := houseNum
+	for {
+		houseNum = houseNum + 10
+		k = receivedPresentsPt2(houseNum)
+		if k >= (numPresents / 4 * 3) {
+			fmt.Print("O")
+		} else if k >= numPresents/2 {
+			fmt.Print("o")
+		} else if k >= numPresents/4 {
+			fmt.Print(".")
+		}
+		if k >= numPresents {
+			fmt.Print(" House number " + strconv.Itoa(houseNum) + " received " + strconv.Itoa(k) + " presents.")
+			fmt.Println("(" + strconv.Itoa(lastFound-houseNum) + ")")
+			lastFound = houseNum
+		}
+	}
+	/*
+		for houseNum > 40000 { //k < numPresents {
+			if houseNum%100000 == 0 {
+				fmt.Print("o")
+			} else if houseNum%1000 == 0 {
+				fmt.Print(".")
+			}
+			houseNum = houseNum - 10 //-- // = houseNum - 360
+			k = receivedPresentsPt1(houseNum)
+			if k >= numPresents {
+				fmt.Print(" House number " + strconv.Itoa(houseNum) + " received " + strconv.Itoa(k) + " presents.")
+				fmt.Println("(" + strconv.Itoa(lastFound-houseNum) + ")")
+				lastFound = houseNum
+			}
+		}
+	*/
+}
+
+func receivedPresentsPt2(house int) int {
+	var ret int
+	elves := getFactors(house)
+	for i := range elves {
+		if (house / elves[i]) <= 50 {
+			ret += elves[i] * 11
+		}
+	}
+	return ret
+}
+
+func receivedPresentsPt1(house int) int {
+	var ret int
+	elves := getFactors(house)
+	for i := range elves {
+		ret += elves[i] * 10
+	}
+	return ret
+}
+
+func getFactors(n int) []int {
+	var ret []int
+	bot := 1
+	top := n
+	for bot < n/2 {
+		if n%bot == 0 {
+			top = n / bot
+			if top == bot {
+				ret = addUnique(ret, bot)
+			} else {
+				ret = addUnique(ret, bot)
+				ret = addUnique(ret, top)
+			}
+		}
+		bot++
+	}
+	return ret
+}
+
+func addUnique(sl []int, n int) []int {
+	for i := 0; i < len(sl); i++ {
+		if sl[i] == n {
+			return sl
+		}
+	}
+	return append(sl, n)
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+		os.Exit(1)
+	}
+	return i
+}
diff --git a/2015/day20/problem b/2015/day20/problem
new file mode 100644
index 0000000..6461ebd
--- /dev/null
+++ b/2015/day20/problem
@@ -0,0 +1,77 @@
+                                           Advent of Code
+
+   br0xen 40*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 20: Infinite Elves and Infinite Houses ---
+
+   To keep the Elves busy, Santa has them deliver some presents by hand, door-to-door. He sends
+   them down a street with infinite houses numbered sequentially: 1, 2, 3, 4, 5, and so on.
+
+   Each Elf is assigned a number, too, and delivers presents to houses based on that number:
+
+     • The first Elf (number 1) delivers presents to every house: 1, 2, 3, 4, 5, ....
+     • The second Elf (number 2) delivers presents to every second house: 2, 4, 6, 8, 10, ....
+     • Elf number 3 delivers presents to every third house: 3, 6, 9, 12, 15, ....
+
+   There are infinitely many Elves, numbered starting with 1. Each Elf delivers presents equal to
+   ten times his or her number at each house.
+
+   So, the first nine houses on the street end up like this:
+
+ House 1 got 10 presents.
+ House 2 got 30 presents.
+ House 3 got 40 presents.
+ House 4 got 70 presents.
+ House 5 got 60 presents.
+ House 6 got 120 presents.
+ House 7 got 80 presents.
+ House 8 got 150 presents.
+ House 9 got 130 presents.
+
+   The first house gets 10 presents: it is visited only by Elf 1, which delivers 1 * 10 = 10
+   presents. The fourth house gets 70 presents, because it is visited by Elves 1, 2, and 4, for a
+   total of 10 + 20 + 40 = 70 presents.
+
+   What is the lowest house number of the house to get at least as many presents as the number in
+   your puzzle input?
+
+   Your puzzle answer was 831600.
+
+--- Part Two ---
+
+   The Elves decide they don't want to visit an infinite number of houses. Instead, each Elf will
+   stop after delivering presents to 50 houses. To make up for it, they decide to deliver presents
+   equal to eleven times their number at each house.
+
+   With these changes, what is the new lowest house number of the house to get at least as many
+   presents as the number in your puzzle input?
+
+   Your puzzle answer was 884520.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   Your puzzle input was 36000000.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22Infinite+Elves+and+Infinite+Houses%22+%2D+Day+20+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F20&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F20
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F20&title=I%27ve+completed+%22Infinite+Elves+and+Infinite+Houses%22+%2D+Day+20+%2D+Advent+of+Code
diff --git a/2015/day21/main.go b/2015/day21/main.go
new file mode 100644
index 0000000..01c9e32
--- /dev/null
+++ b/2015/day21/main.go
@@ -0,0 +1,221 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+var enemyHp int
+var enemyDmg int
+var enemyDef int
+
+var weaponsAvailable []weapon
+var armorAvailable []armor
+var ringsAvailable []ring
+
+var currWeapon, cheapWeapon, highWeapon weapon
+var currArmor, cheapArmor, highArmor armor
+var currRing1, cheapRing1, highRing1 ring
+var currRing2, cheapRing2, highRing2 ring
+
+// My input: ./day21 100 8 2
+func main() {
+	if len(os.Args) < 4 || os.Args[1] == "-help" {
+		fmt.Println("Usage: day21 <enemy hp> <enemy dmg> <enemy def")
+		os.Exit(1)
+	}
+
+	enemyHp = mustAtoi(os.Args[1])
+	enemyDmg = mustAtoi(os.Args[2])
+	enemyDef = mustAtoi(os.Args[3])
+
+	cheapest := -1
+	highest := -1
+	initShop()
+
+	for wi := range weaponsAvailable {
+		currWeapon = weaponsAvailable[wi]
+		for ai := range armorAvailable {
+			currArmor = armorAvailable[ai]
+			for r1i := range ringsAvailable {
+				currRing1 = ringsAvailable[r1i]
+				for r2i := range ringsAvailable {
+					if r2i == r1i {
+						continue
+					}
+					currRing2 = ringsAvailable[r2i]
+					if toTheDeath(false) {
+						if calcCost() < cheapest || cheapest == -1 {
+							cheapest = calcCost()
+							saveCheapest()
+						}
+					} else {
+						if calcCost() > highest || highest == -1 {
+							highest = calcCost()
+							saveHighest()
+						}
+					}
+				}
+			}
+		}
+	}
+
+	if cheapest >= 0 {
+		fmt.Println("Cheapest Victory: " + itoa(cheapest))
+		fmt.Println("Weapon: " + cheapWeapon.name)
+		fmt.Println("Armor: " + cheapArmor.name)
+		fmt.Println("Ring1: " + cheapRing1.name)
+		fmt.Println("Ring2: " + cheapRing2.name)
+		loadCheapest()
+		toTheDeath(true)
+	} else {
+		fmt.Println("No victory to be had.")
+	}
+	fmt.Println()
+	if highest >= 0 {
+		fmt.Println("Most Expensive Loss: " + itoa(highest))
+		fmt.Println("Weapon: " + highWeapon.name)
+		fmt.Println("Armor: " + highArmor.name)
+		fmt.Println("Ring1: " + highRing1.name)
+		fmt.Println("Ring2: " + highRing2.name)
+		loadHighest()
+		toTheDeath(true)
+	} else {
+		fmt.Println("No victory to be had.")
+	}
+}
+
+func loadCheapest() {
+	currWeapon = cheapWeapon
+	currArmor = cheapArmor
+	currRing1 = cheapRing1
+	currRing2 = cheapRing2
+}
+
+func saveCheapest() {
+	cheapWeapon = currWeapon
+	cheapArmor = currArmor
+	cheapRing1 = currRing1
+	cheapRing2 = currRing2
+}
+
+func loadHighest() {
+	currWeapon = highWeapon
+	currArmor = highArmor
+	currRing1 = highRing1
+	currRing2 = highRing2
+}
+
+func saveHighest() {
+	highWeapon = currWeapon
+	highArmor = currArmor
+	highRing1 = currRing1
+	highRing2 = currRing2
+}
+
+func toTheDeath(output bool) bool {
+	var pHp, pDmg, pDef, eHp, eDmg, eDef int
+	pHp = 100
+
+	pDmg += currWeapon.damage
+	pDmg += currRing1.damage
+	pDmg += currRing2.damage
+	pDef += currArmor.defense
+	pDef += currRing1.defense
+	pDef += currRing2.defense
+
+	eHp = enemyHp
+	eDmg = enemyDmg
+	eDef = enemyDef
+
+	for pHp > 0 && eHp > 0 {
+		pAtk := pDmg - eDef
+		if pAtk <= 1 {
+			pAtk = 1
+		}
+		eHp -= pAtk
+		eAtk := 1
+		if eHp > 0 {
+			eAtk = eDmg - pDef
+			if eAtk <= 1 {
+				eAtk = 1
+			}
+			pHp -= eAtk
+		}
+	}
+	if output {
+		fmt.Print(itoa(calcCost()) + ": ")
+		fmt.Print(itoa(pHp) + " to " + itoa(eHp) + " ")
+		fmt.Println("DMG(" + itoa(pDmg) + ") DEF(" + itoa(pDef) + ") ")
+	}
+	return pHp > 0
+}
+
+func calcCost() int {
+	return currWeapon.cost + currArmor.cost + currRing1.cost + currRing2.cost
+}
+
+func initShop() {
+	addWeapon("Dagger", 8, 4)
+	addWeapon("Shortsword", 10, 5)
+	addWeapon("Warhammer", 25, 6)
+	addWeapon("Longsword", 40, 7)
+	addWeapon("Greataxe", 74, 8)
+
+	addArmor("Leather", 13, 1)
+	addArmor("Chainmail", 31, 2)
+	addArmor("Splintmail", 53, 3)
+	addArmor("Bandedmail", 75, 4)
+	addArmor("Platemail", 102, 5)
+	addArmor("No Armor", 0, 0)
+
+	addRing("Damage +1", 25, 1, 0)
+	addRing("Damage +2", 50, 2, 0)
+	addRing("Damage +3", 100, 3, 0)
+	addRing("Defense +1", 20, 0, 1)
+	addRing("Defense +2", 40, 0, 2)
+	addRing("Defense +3", 80, 0, 3)
+	addRing("No Ring 1", 0, 0, 0)
+	addRing("No Ring 2", 0, 0, 0)
+}
+func addWeapon(n string, c, dmg int) {
+	weaponsAvailable = append(weaponsAvailable,
+		weapon{name: n, cost: c, damage: dmg})
+}
+func addArmor(n string, c, def int) {
+	armorAvailable = append(armorAvailable,
+		armor{name: n, cost: c, defense: def})
+}
+func addRing(n string, c, dmg, def int) {
+	ringsAvailable = append(ringsAvailable,
+		ring{name: n, cost: c, damage: dmg, defense: def})
+}
+
+type weapon struct {
+	name         string
+	cost, damage int
+}
+
+type armor struct {
+	name          string
+	cost, defense int
+}
+
+type ring struct {
+	name                  string
+	cost, damage, defense int
+}
+
+func itoa(i int) string {
+	return strconv.Itoa(i)
+}
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+		os.Exit(1)
+	}
+	return i
+}
diff --git a/2015/day21/problem b/2015/day21/problem
new file mode 100644
index 0000000..a3aa5b8
--- /dev/null
+++ b/2015/day21/problem
@@ -0,0 +1,108 @@
+                                           Advent of Code
+
+   br0xen 42*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 21: RPG Simulator 20XX ---
+
+   Little Henry Case got a new video game for Christmas. It's an RPG, and he's stuck on a boss.
+   He needs to know what equipment to buy at the shop. He hands you the controller.
+
+   In this game, the player (you) and the enemy (the boss) take turns attacking. The player
+   always goes first. Each attack reduces the opponent's hit points by at least 1. The first
+   character at or below 0 hit points loses.
+
+   Damage dealt by an attacker each turn is equal to the attacker's damage score minus the
+   defender's armor score. An attacker always does at least 1 damage. So, if the attacker has a
+   damage score of 8, and the defender has an armor score of 3, the defender loses 5 hit points.
+   If the defender had an armor score of 300, the defender would still lose 1 hit point.
+
+   Your damage score and armor score both start at zero. They can be increased by buying items in
+   exchange for gold. You start with no items and have as much gold as you need. Your total
+   damage or armor is equal to the sum of those stats from all of your items. You have 100 hit
+   points.
+
+   Here is what the item shop is selling:
+
+ Weapons:    Cost  Damage  Armor
+ Dagger        8     4       0
+ Shortsword   10     5       0
+ Warhammer    25     6       0
+ Longsword    40     7       0
+ Greataxe     74     8       0
+
+ Armor:      Cost  Damage  Armor
+ Leather      13     0       1
+ Chainmail    31     0       2
+ Splintmail   53     0       3
+ Bandedmail   75     0       4
+ Platemail   102     0       5
+
+ Rings:      Cost  Damage  Armor
+ Damage +1    25     1       0
+ Damage +2    50     2       0
+ Damage +3   100     3       0
+ Defense +1   20     0       1
+ Defense +2   40     0       2
+ Defense +3   80     0       3
+
+   You must buy exactly one weapon; no dual-wielding. Armor is optional, but you can't use more
+   than one. You can buy 0-2 rings (at most one for each hand). You must use any items you buy.
+   The shop only has one of each item, so you can't buy, for example, two rings of Damage +3.
+
+   For example, suppose you have 8 hit points, 5 damage, and 5 armor, and that the boss has 12
+   hit points, 7 damage, and 2 armor:
+
+     • The player deals 5-2 = 3 damage; the boss goes down to 9 hit points.
+     • The boss deals 7-5 = 2 damage; the player goes down to 6 hit points.
+     • The player deals 5-2 = 3 damage; the boss goes down to 6 hit points.
+     • The boss deals 7-5 = 2 damage; the player goes down to 4 hit points.
+     • The player deals 5-2 = 3 damage; the boss goes down to 3 hit points.
+     • The boss deals 7-5 = 2 damage; the player goes down to 2 hit points.
+     • The player deals 5-2 = 3 damage; the boss goes down to 0 hit points.
+
+   In this scenario, the player wins! (Barely.)
+
+   You have 100 hit points. The boss's actual stats are in your puzzle input. What is the least
+   amount of gold you can spend and still win the fight?
+
+   Your puzzle answer was 91.
+
+--- Part Two ---
+
+   Turns out the shopkeeper is working with the boss, and can persuade you to buy whatever items
+   he wants. The other rules still apply, and he still only has one of each item.
+
+   What is the most amount of gold you can spend and still lose the fight?
+
+   Your puzzle answer was 158.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, you should return to your advent calendar and try another puzzle.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . https://en.wikipedia.org/wiki/Role-playing_video_game
+   . https://en.wikipedia.org/wiki/Game_controller
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/21/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22RPG+Simulator+20XX%22+%2D+Day+21+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F21&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F21
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F21&title=I%27ve+completed+%22RPG+Simulator+20XX%22+%2D+Day+21+%2D+Advent+of+Code
diff --git a/2015/day22/main.go b/2015/day22/main.go
new file mode 100644
index 0000000..4c198ca
--- /dev/null
+++ b/2015/day22/main.go
@@ -0,0 +1,227 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+const (
+	playerTurn = iota
+	bossTurn
+)
+
+type state struct {
+	bossHp    int
+	bossDmg   int
+	playerHp  int
+	playerMp  int
+	playerDef int
+	shield    int
+	poison    int
+	recharge  int
+	manaSpent int
+	move      int
+}
+
+type spell struct {
+	name     string
+	mpCost   int
+	damage   int
+	heal     int
+	duration int
+}
+
+var minMp int
+var spellBook []spell
+var stateStack []state
+
+func main() {
+	minMp = -1
+	initSpellBook()
+	if len(os.Args) == 2 && os.Args[1] == "-help" {
+		fmt.Println("Usage: day22 [<boss hp> <boss dmg> [<player hp> <player mp>]]")
+		os.Exit(1)
+	}
+	//debugMode = true
+	eHp := 71
+	eDmg := 10
+	if len(os.Args) >= 3 {
+		eHp = mustAtoi(os.Args[1])
+		eDmg = mustAtoi(os.Args[2])
+	}
+	pHp := 50
+	pMp := 500
+	if len(os.Args) == 5 {
+		pHp = mustAtoi(os.Args[3])
+		pMp = mustAtoi(os.Args[4])
+	}
+	s := state{
+		bossHp:    eHp,
+		bossDmg:   eDmg,
+		playerHp:  pHp,
+		playerMp:  pMp,
+		playerDef: 0,
+		shield:    0,
+		poison:    0,
+		recharge:  0,
+		manaSpent: 0,
+		move:      playerTurn,
+	}
+	stateStack = append(stateStack, s)
+	for len(stateStack) > 0 {
+		var wrk state
+		wrk, stateStack = stateStack[0], stateStack[1:]
+		// Hard Mode
+		if wrk.move == playerTurn {
+			wrk.playerHp--
+		}
+		wrk.playerDef = 0
+		if wrk.shield > 0 {
+			wrk.playerDef = 7
+		}
+		if wrk.poison > 0 {
+			wrk.bossHp -= 3
+		}
+		if wrk.recharge > 0 {
+			wrk.playerMp += 101
+		}
+		wrk = decrementTimers(wrk)
+		if wrk.playerHp <= 0 || (wrk.manaSpent > minMp && minMp != -1) {
+			// Unsuccessful path
+			continue
+		}
+		if wrk.bossHp <= 0 {
+			// Successful path!
+			if minMp == -1 || minMp > wrk.manaSpent {
+				minMp = wrk.manaSpent
+			}
+			continue
+		}
+		if wrk.move == bossTurn {
+			wrk.move = playerTurn
+			atk := 1
+			if wrk.bossDmg-wrk.playerDef > 1 {
+				atk = wrk.bossDmg - wrk.playerDef
+			}
+			wrk.playerHp -= atk
+			stateStack = append([]state{wrk}, stateStack...)
+		} else {
+			wrk.move = bossTurn
+			for i := range spellBook {
+				tstSpell := spellBook[i]
+				if tstSpell.mpCost >= wrk.playerMp {
+					continue
+				}
+				nextState, ok := castSpell(wrk, tstSpell)
+				if ok {
+					stateStack = append([]state{nextState}, stateStack...)
+				}
+			}
+		}
+	}
+	fmt.Printf("%d\n", minMp)
+}
+
+func castSpell(w state, s spell) (state, bool) {
+	if s.name == "Magic Missile" || s.name == "Drain" {
+		w.bossHp -= s.damage
+		w.playerHp += s.heal
+	} else if s.name == "Shield" {
+		if w.shield > 0 {
+			return w, false
+		}
+		w.shield = s.duration
+	} else if s.name == "Poison" {
+		if w.poison > 0 {
+			return w, false
+		}
+		w.poison = s.duration
+	} else if s.name == "Recharge" {
+		if w.recharge > 0 {
+			return w, false
+		}
+		w.recharge = s.duration
+	}
+	w.playerMp -= s.mpCost
+	w.manaSpent += s.mpCost
+	return w, true
+}
+
+func copyState(w state) state {
+	ret := state{
+		bossHp:    w.bossHp,
+		bossDmg:   w.bossDmg,
+		playerHp:  w.playerHp,
+		playerMp:  w.playerMp,
+		playerDef: w.playerDef,
+		shield:    w.shield,
+		poison:    w.poison,
+		recharge:  w.recharge,
+		manaSpent: w.manaSpent,
+		move:      w.move,
+	}
+	return ret
+}
+
+func printState(w state) {
+	if w.move == playerTurn {
+		fmt.Println("*** Player Turn ***")
+	} else {
+		fmt.Println("*** Boss Turn ***")
+	}
+	fmt.Printf("Player - HP(%d) MP(%d)\n", w.playerHp, w.playerMp)
+	fmt.Printf("Boss - HP(%d) DMG(%d)\n", w.bossHp, w.bossDmg)
+	fmt.Printf("Shield(%d); Poison(%d); Recharge(%d)\n", w.shield, w.poison, w.recharge)
+	fmt.Printf("Mana Used: %d\n", w.manaSpent)
+	fmt.Println()
+}
+
+func decrementTimers(w state) state {
+	w.shield--
+	w.poison--
+	w.recharge--
+	return w
+}
+
+func initSpellBook() {
+	spellBook = append(spellBook, spell{
+		name:   "Magic Missile",
+		mpCost: 53,
+		damage: 4,
+	})
+	spellBook = append(spellBook, spell{
+		name:   "Drain",
+		mpCost: 73,
+		damage: 2,
+		heal:   2,
+	})
+	spellBook = append(spellBook, spell{
+		name:     "Shield",
+		mpCost:   113,
+		duration: 6,
+	})
+	spellBook = append(spellBook, spell{
+		name:     "Poison",
+		mpCost:   173,
+		duration: 6,
+	})
+	spellBook = append(spellBook, spell{
+		name:     "Recharge",
+		mpCost:   229,
+		duration: 5,
+	})
+}
+
+func itoa(i int) string {
+	return strconv.Itoa(i)
+}
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+		os.Exit(1)
+	}
+	return i
+}
diff --git a/2015/day22/problem b/2015/day22/problem
new file mode 100644
index 0000000..b6325f4
--- /dev/null
+++ b/2015/day22/problem
@@ -0,0 +1,161 @@
+                                           Advent of Code
+
+   br0xen 44*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 22: Wizard Simulator 20XX ---
+
+   Little Henry Case decides that defeating bosses with swords and stuff is boring. Now he's
+   playing the game with a wizard. Of course, he gets stuck on another boss and needs your help
+   again.
+
+   In this version, combat still proceeds with the player and the boss taking alternating turns.
+   The player still goes first. Now, however, you don't get any equipment; instead, you must
+   choose one of your spells to cast. The first character at or below 0 hit points loses.
+
+   Since you're a wizard, you don't get to wear armor, and you can't attack normally. However,
+   since you do magic damage, your opponent's armor is ignored, and so the boss effectively has
+   zero armor as well. As before, if armor (from a spell, in this case) would reduce damage below
+   1, it becomes 1 instead - that is, the boss' attacks always deal at least 1 damage.
+
+   On each of your turns, you must select one of your spells to cast. If you cannot afford to
+   cast any spell, you lose. Spells cost mana; you start with 500 mana, but have no maximum
+   limit. You must have enough mana to cast a spell, and its cost is immediately deducted when
+   you cast it. Your spells are Magic Missile, Drain, Shield, Poison, and Recharge.
+
+     • Magic Missile costs 53 mana. It instantly does 4 damage.
+     • Drain costs 73 mana. It instantly does 2 damage and heals you for 2 hit points.
+     • Shield costs 113 mana. It starts an effect that lasts for 6 turns. While it is active,
+       your armor is increased by 7.
+     • Poison costs 173 mana. It starts an effect that lasts for 6 turns. At the start of each
+       turn while it is active, it deals the boss 3 damage.
+     • Recharge costs 229 mana. It starts an effect that lasts for 5 turns. At the start of each
+       turn while it is active, it gives you 101 new mana.
+
+   Effects all work the same way. Effects apply at the start of both the player's turns and the
+   boss' turns. Effects are created with a timer (the number of turns they last); at the start of
+   each turn, after they apply any effect they have, their timer is decreased by one. If this
+   decreases the timer to zero, the effect ends. You cannot cast a spell that would start an
+   effect which is already active. However, effects can be started on the same turn they end.
+
+   For example, suppose the player has 10 hit points and 250 mana, and that the boss has 13 hit
+   points and 8 damage:
+
+ -- Player turn --
+ - Player has 10 hit points, 0 armor, 250 mana
+ - Boss has 13 hit points
+ Player casts Poison.
+
+ -- Boss turn --
+ - Player has 10 hit points, 0 armor, 77 mana
+ - Boss has 13 hit points
+ Poison deals 3 damage; its timer is now 5.
+ Boss attacks for 8 damage.
+
+ -- Player turn --
+ - Player has 2 hit points, 0 armor, 77 mana
+ - Boss has 10 hit points
+ Poison deals 3 damage; its timer is now 4.
+ Player casts Magic Missile, dealing 4 damage.
+
+ -- Boss turn --
+ - Player has 2 hit points, 0 armor, 24 mana
+ - Boss has 3 hit points
+ Poison deals 3 damage. This kills the boss, and the player wins.
+
+   Now, suppose the same initial conditions, except that the boss has 14 hit points instead:
+
+ -- Player turn --
+ - Player has 10 hit points, 0 armor, 250 mana
+ - Boss has 14 hit points
+ Player casts Recharge.
+
+ -- Boss turn --
+ - Player has 10 hit points, 0 armor, 21 mana
+ - Boss has 14 hit points
+ Recharge provides 101 mana; its timer is now 4.
+ Boss attacks for 8 damage!
+
+ -- Player turn --
+ - Player has 2 hit points, 0 armor, 122 mana
+ - Boss has 14 hit points
+ Recharge provides 101 mana; its timer is now 3.
+ Player casts Shield, increasing armor by 7.
+
+ -- Boss turn --
+ - Player has 2 hit points, 7 armor, 110 mana
+ - Boss has 14 hit points
+ Shield's timer is now 5.
+ Recharge provides 101 mana; its timer is now 2.
+ Boss attacks for 8 - 7 = 1 damage!
+
+ -- Player turn --
+ - Player has 1 hit point, 7 armor, 211 mana
+ - Boss has 14 hit points
+ Shield's timer is now 4.
+ Recharge provides 101 mana; its timer is now 1.
+ Player casts Drain, dealing 2 damage, and healing 2 hit points.
+
+ -- Boss turn --
+ - Player has 3 hit points, 7 armor, 239 mana
+ - Boss has 12 hit points
+ Shield's timer is now 3.
+ Recharge provides 101 mana; its timer is now 0.
+ Recharge wears off.
+ Boss attacks for 8 - 7 = 1 damage!
+
+ -- Player turn --
+ - Player has 2 hit points, 7 armor, 340 mana
+ - Boss has 12 hit points
+ Shield's timer is now 2.
+ Player casts Poison.
+
+ -- Boss turn --
+ - Player has 2 hit points, 7 armor, 167 mana
+ - Boss has 12 hit points
+ Shield's timer is now 1.
+ Poison deals 3 damage; its timer is now 5.
+ Boss attacks for 8 - 7 = 1 damage!
+
+ -- Player turn --
+ - Player has 1 hit point, 7 armor, 167 mana
+ - Boss has 9 hit points
+ Shield's timer is now 0.
+ Shield wears off, decreasing armor by 7.
+ Poison deals 3 damage; its timer is now 4.
+ Player casts Magic Missile, dealing 4 damage.
+
+ -- Boss turn --
+ - Player has 1 hit point, 0 armor, 114 mana
+ - Boss has 2 hit points
+ Poison deals 3 damage. This kills the boss, and the player wins.
+
+   You start with 50 hit points and 500 mana points. The boss's actual stats are in your puzzle
+   input. What is the least amount of mana you can spend and still win the fight? (Do not include
+   mana recharge effects as "spending" negative mana.)
+
+   To begin, get your puzzle input.
+
+   Answer: _____________________ [ [Submit] ]
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/day/21
+   . http://adventofcode.com/day/22/input
+   . https://twitter.com/intent/tweet?text=%22Wizard+Simulator+20XX%22+%2D+Day+22+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F22&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F22
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F22&title=%22Wizard+Simulator+20XX%22+%2D+Day+22+%2D+Advent+of+Code
diff --git a/2015/day23/input b/2015/day23/input
new file mode 100644
index 0000000..1ff192d
--- /dev/null
+++ b/2015/day23/input
@@ -0,0 +1,48 @@
+jio a, +22
+inc a
+tpl a
+tpl a
+tpl a
+inc a
+tpl a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+jmp +19
+tpl a
+tpl a
+tpl a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+tpl a
+tpl a
+jio a, +8
+inc b
+jie a, +4
+tpl a
+inc a
+jmp +2
+hlf a
+jmp -7
\ No newline at end of file
diff --git a/2015/day23/main.go b/2015/day23/main.go
new file mode 100644
index 0000000..30f28e3
--- /dev/null
+++ b/2015/day23/main.go
@@ -0,0 +1,103 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+var registers map[string]int
+
+func main() {
+	registers = make(map[string]int)
+	if len(os.Args) > 1 {
+		if os.Args[1] == "-help" {
+			fmt.Println("Usage: day23 [register presets]")
+			fmt.Println("  Register presets are given in the form:")
+			fmt.Println("    name=value")
+			fmt.Println("  If more than one, separate with spaces.")
+			fmt.Println("  If none are given, all registers start at 0")
+			os.Exit(1)
+		}
+		for i := range os.Args {
+			if strings.Contains(os.Args[i], "=") {
+				presets := strings.Split(os.Args[i], "=")
+				registers[presets[0]] = mustAtoi(presets[1])
+			}
+		}
+	}
+	var input []string
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		input = append(input, strings.ToLower(scanner.Text()))
+	}
+	// We manually manage i
+	var i, cnt int
+	for i < len(input) {
+		printRegisters()
+		fmt.Print(" ")
+		cnt++
+		fmt.Print(input[i])
+		parts := strings.Split(input[i], " ")
+		switch parts[0] {
+		case "hlf":
+			registers[parts[1]] = registers[parts[1]] / 2
+			i++
+		case "tpl":
+			registers[parts[1]] = registers[parts[1]] * 3
+			i++
+		case "inc":
+			registers[parts[1]]++
+			i++
+		case "jmp":
+			i += mustAtoi(parts[1])
+		case "jie":
+			parts[1] = string(parts[1][len(parts[1])-2])
+			if registers[parts[1]]%2 == 0 {
+				i += mustAtoi(parts[2])
+			} else {
+				i++
+			}
+		case "jio":
+			parts[1] = string(parts[1][len(parts[1])-2])
+			if registers[parts[1]] == 1 {
+				i += mustAtoi(parts[2])
+			} else {
+				i++
+			}
+		}
+		fmt.Print(" ")
+		printRegistersLn()
+	}
+	printRegistersLn()
+}
+
+func printRegistersLn() {
+	printRegisters()
+	fmt.Println()
+}
+
+func printRegisters() {
+	fmt.Print("[")
+	for k := range registers {
+		printRegister(k)
+		fmt.Print(" ")
+	}
+	fmt.Print("]")
+}
+
+func printRegister(n string) {
+	fmt.Print(n + ": " + strconv.Itoa(registers[n]))
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+		os.Exit(1)
+	}
+	return i
+}
diff --git a/2015/day23/problem b/2015/day23/problem
new file mode 100644
index 0000000..5866c5c
--- /dev/null
+++ b/2015/day23/problem
@@ -0,0 +1,78 @@
+                                           Advent of Code
+
+   br0xen 43*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 23: Opening the Turing Lock ---
+
+   Little Jane Marie just got her very first computer for Christmas from some unknown benefactor.
+   It comes with instructions and an example program, but the computer itself seems to be
+   malfunctioning. She's curious what the program does, and would like you to help her run it.
+
+   The manual explains that the computer supports two registers and six instructions (truly, it
+   goes on to remind the reader, a state-of-the-art technology). The registers are named a and b,
+   can hold any non-negative integer, and begin with a value of 0. The instructions are as
+   follows:
+
+     • hlf r sets register r to half its current value, then continues with the next instruction.
+     • tpl r sets register r to triple its current value, then continues with the next
+       instruction.
+     • inc r increments register r, adding 1 to it, then continues with the next instruction.
+     • jmp offset is a jump; it continues with the instruction offset away relative to itself.
+     • jie r, offset is like jmp, but only jumps if register r is even ("jump if even").
+     • jio r, offset is like jmp, but only jumps if register r is 1 ("jump if one", not odd).
+
+   All three jump instructions work with an offset relative to that instruction. The offset is
+   always written with a prefix + or - to indicate the direction of the jump (forward or
+   backward, respectively). For example, jmp +1 would simply continue with the next instruction,
+   while jmp +0 would continuously jump back to itself forever.
+
+   The program exits when it tries to run an instruction beyond the ones defined.
+
+   For example, this program sets a to 2, because the jio instruction causes it to skip the tpl
+   instruction:
+
+ inc a
+ jio a, +2
+ tpl a
+ inc a
+
+   What is the value in register b when the program in your puzzle input is finished executing?
+
+   Your puzzle answer was 255.
+
+   The first half of this puzzle is complete! It provides one gold star: *
+
+--- Part Two ---
+
+   The unknown benefactor is very thankful for releasi-- er, helping little Jane Marie with her
+   computer. Definitely not to distract you, what is the value in register b after the program is
+   finished executing if register a starts as 1 instead?
+
+   Although it hasn't changed, you can still get your puzzle input.
+
+   Answer: _____________________ [ [Submit] ]
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . https://en.wikipedia.org/wiki/Processor_register
+   . https://en.wikipedia.org/wiki/Instruction_set
+   . https://en.wikipedia.org/wiki/Natural_number
+   . http://adventofcode.com/day/23/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+Part+One+of+%22Opening+the+Turing+Lock%22+%2D+Day+23+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F23&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F23
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F23&title=I%27ve+completed+Part+One+of+%22Opening+the+Turing+Lock%22+%2D+Day+23+%2D+Advent+of+Code
diff --git a/2015/day24/input b/2015/day24/input
new file mode 100644
index 0000000..e204f7d
--- /dev/null
+++ b/2015/day24/input
@@ -0,0 +1,28 @@
+1
+3
+5
+11
+13
+17
+19
+23
+29
+31
+37
+41
+43
+47
+53
+59
+67
+71
+73
+79
+83
+89
+97
+101
+103
+107
+109
+113
diff --git a/2015/day24/main.go b/2015/day24/main.go
new file mode 100644
index 0000000..501f93a
--- /dev/null
+++ b/2015/day24/main.go
@@ -0,0 +1,142 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+var pkgWeights []int64
+
+func main() {
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		pkgWeights = append(pkgWeights, int64(mustAtoi(strings.ToLower(scanner.Text()))))
+	}
+	// Sort the weights, in the case of our input, no need.
+	totalWeight := weighPackages(pkgWeights)
+	// For Part 1:
+	//splitWeight := totalWeight / 3
+	// For Part 2:
+	splitWeight := totalWeight / 4
+	fmt.Printf("Balanced at %d\n", splitWeight)
+	// Now find the fewest number of packages that are that weight
+	result := tryPackages([]int64{}, pkgWeights, splitWeight)
+	fmt.Println("*** RESULT ***")
+	//result = makeUnique(result)
+	lowestQE := int64(-1)
+	shortest := -1
+	for i := range result {
+		if len(result[i]) <= shortest || shortest == -1 {
+			fmt.Print(result[i])
+			fmt.Printf(" L:%d", len(result[i]))
+			fmt.Printf(" QE:%d\n", getQE(result[i]))
+			shortest = len(result[i])
+			if getQE(result[i]) < lowestQE || lowestQE == -1 {
+				lowestQE = getQE(result[i])
+			}
+		}
+	}
+	fmt.Println()
+	fmt.Printf("%d\n", lowestQE)
+}
+
+func tryPackages(pkgs []int64, rem []int64, targ int64) [][]int64 {
+	// Go through all packages in 'rem' and find the combination
+	// That results in the least total number of packages
+	var findRet [][]int64
+	fewest := -1
+	if len(pkgs) > fewest && fewest != -1 {
+		return findRet
+	}
+	for i := len(rem) - 1; i >= 0; i-- {
+		t := targ - weighPackages(pkgs)
+		if rem[i] <= t {
+			tryPkgs := append(pkgs, rem[i])
+			if weighPackages(tryPkgs) == targ {
+				//if len(tryPkgs) <= fewest || fewest == -1 {
+				findRet = append(findRet, tryPkgs)
+				//	fewest = len(tryPkgs)
+				//}
+			}
+			// Not there yet... Recurse
+			rem = rem[:i]
+			res := tryPackages(tryPkgs, rem, targ)
+			for i := range res {
+				if weighPackages(res[i]) == targ {
+					//if len(res[i]) <= fewest || fewest == -1 {
+					findRet = append(findRet, res[i])
+					//	fewest = len(res[i])
+					//}
+				}
+			}
+		}
+	}
+	return findRet
+}
+
+func getQE(pkgs []int64) int64 {
+	var totalQE int64
+	for i := range pkgs {
+		if totalQE == 0 {
+			totalQE = int64(pkgs[i])
+		} else {
+			totalQE = totalQE * int64(pkgs[i])
+		}
+	}
+	return totalQE
+}
+
+func weighPackages(pkgs []int64) int64 {
+	var totalWeight int64
+	for i := range pkgs {
+		totalWeight += pkgs[i]
+	}
+	return totalWeight
+}
+
+func makeUnique(s [][]int64) [][]int64 {
+	var ret [][]int64
+	for i := range s {
+		var found bool
+		// Check if s[i] is already in ret
+		for j := range ret {
+			if isSame(ret[j], s[i]) {
+				found = true
+				break
+			}
+		}
+		if !found {
+			ret = append(ret, s[i])
+		}
+	}
+	return ret
+}
+
+func isSame(s1 []int64, s2 []int64) bool {
+	if len(s1) != len(s2) {
+		return false
+	}
+	for i := range s1 {
+		if s1[i] != s2[i] {
+			return false
+		}
+	}
+	return true
+}
+
+func itoa(i int) string {
+	return strconv.Itoa(i)
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+		os.Exit(1)
+	}
+	return i
+}
diff --git a/2015/day24/problem b/2015/day24/problem
new file mode 100644
index 0000000..5b77d93
--- /dev/null
+++ b/2015/day24/problem
@@ -0,0 +1,116 @@
+                                           Advent of Code
+
+   br0xen 50*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 24: It Hangs in the Balance ---
+
+   It's Christmas Eve, and Santa is loading up the sleigh for this year's deliveries. However,
+   there's one small problem: he can't get the sleigh to balance. If it isn't balanced, he can't
+   defy physics, and nobody gets presents this year.
+
+   No pressure.
+
+   Santa has provided you a list of the weights of every package he needs to fit on the sleigh.
+   The packages need to be split into three groups of exactly the same weight, and every package
+   has to fit. The first group goes in the passenger compartment of the sleigh, and the second
+   and third go in containers on either side. Only when all three groups weigh exactly the same
+   amount will the sleigh be able to fly. Defying physics has rules, you know!
+
+   Of course, that's not the only problem. The first group - the one going in the passenger
+   compartment - needs as few packages as possible so that Santa has some legroom left over. It
+   doesn't matter how many packages are in either of the other two groups, so long as all of the
+   groups weigh the same.
+
+   Furthermore, Santa tells you, if there are multiple ways to arrange the packages such that the
+   fewest possible are in the first group, you need to choose the way where the first group has
+   the smallest quantum entanglement to reduce the chance of any "complications". The quantum
+   entanglement of a group of packages is the product of their weights, that is, the value you
+   get when you multiply their weights together. Only consider quantum entanglement if the first
+   group has the fewest possible number of packages in it and all groups weigh the same amount.
+
+   For example, suppose you have ten packages with weights 1 through 5 and 7 through 11. For this
+   situation, some of the unique first groups, their quantum entanglements, and a way to divide
+   the remaining packages are as follows:
+
+ Group 1;             Group 2; Group 3
+ 11 9       (QE= 99); 10 8 2;  7 5 4 3 1
+ 10 9 1     (QE= 90); 11 7 2;  8 5 4 3
+ 10 8 2     (QE=160); 11 9;    7 5 4 3 1
+ 10 7 3     (QE=210); 11 9;    8 5 4 2 1
+ 10 5 4 1   (QE=200); 11 9;    8 7 3 2
+ 10 5 3 2   (QE=300); 11 9;    8 7 4 1
+ 10 4 3 2 1 (QE=240); 11 9;    8 7 5
+ 9 8 3      (QE=216); 11 7 2;  10 5 4 1
+ 9 7 4      (QE=252); 11 8 1;  10 5 3 2
+ 9 5 4 2    (QE=360); 11 8 1;  10 7 3
+ 8 7 5      (QE=280); 11 9;    10 4 3 2 1
+ 8 5 4 3    (QE=480); 11 9;    10 7 2 1
+ 7 5 4 3 1  (QE=420); 11 9;    10 8 2
+
+   Of these, although 10 9 1 has the smallest quantum entanglement (90), the configuration with
+   only two packages, 11 9, in the passenger compartment gives Santa the most legroom and wins.
+   In this situation, the quantum entanglement for the ideal configuration is therefore 99. Had
+   there been two configurations with only two packages in the first group, the one with the
+   smaller quantum entanglement would be chosen.
+
+   What is the quantum entanglement of the first group of packages in the ideal configuration?
+
+   Your puzzle answer was 10439961859.
+
+--- Part Two ---
+
+   That's weird... the sleigh still isn't balancing.
+
+   "Ho ho ho", Santa muses to himself. "I forgot the trunk".
+
+   Balance the sleigh again, but this time, separate the packages into four groups instead of
+   three. The other constraints still apply.
+
+   Given the example packages above, this would be some of the new unique first groups, their
+   quantum entanglements, and one way to divide the remaining packages:
+
+ 11 4    (QE=44); 10 5;   9 3 2 1; 8 7
+ 10 5    (QE=50); 11 4;   9 3 2 1; 8 7
+ 9 5 1   (QE=45); 11 4;   10 3 2;  8 7
+ 9 4 2   (QE=72); 11 3 1; 10 5;    8 7
+ 9 3 2 1 (QE=54); 11 4;   10 5;    8 7
+ 8 7     (QE=56); 11 4;   10 5;    9 3 2 1
+
+   Of these, there are three arrangements that put the minimum (two) number of packages in the
+   first group: 11 4, 10 5, and 8 7. Of these, 11 4 has the lowest quantum entanglement, and so
+   it is selected.
+
+   Now, what is the quantum entanglement of the first group of packages in the ideal
+   configuration?
+
+   Your puzzle answer was 72050269.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+   At this point, all that is left is for you to admire your advent calendar.
+
+   If you still want to see it, you can get your puzzle input.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . https://en.wikipedia.org/wiki/Product_%28mathematics%29
+   . http://adventofcode.com/
+   . http://adventofcode.com/day/24/input
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+%22It+Hangs+in+the+Balance%22+%2D+Day+24+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F24&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F24
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F24&title=I%27ve+completed+%22It+Hangs+in+the+Balance%22+%2D+Day+24+%2D+Advent+of+Code
diff --git a/2015/day24/sample_input b/2015/day24/sample_input
new file mode 100644
index 0000000..957cf3a
--- /dev/null
+++ b/2015/day24/sample_input
@@ -0,0 +1,10 @@
+1
+2
+3
+4
+5
+7
+8
+9
+10
+11
\ No newline at end of file
diff --git a/2015/day25/input b/2015/day25/input
new file mode 100644
index 0000000..c5c38e6
--- /dev/null
+++ b/2015/day25/input
@@ -0,0 +1 @@
+To continue, please consult the code grid in the manual.  Enter the code at row 2947, column 3029.
diff --git a/2015/day25/main.go b/2015/day25/main.go
new file mode 100644
index 0000000..c3b0b2e
--- /dev/null
+++ b/2015/day25/main.go
@@ -0,0 +1,55 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+func main() {
+	if len(os.Args) < 2 || os.Args[1] == "-help" {
+		fmt.Println("Usage: day25 <row> <col>")
+		fmt.Println("   or: day25 <code number>")
+	}
+	row := mustAtoi(os.Args[1])
+	if len(os.Args) == 2 {
+		fmt.Printf("%d\n", genCodeNum(row))
+		os.Exit(0)
+	}
+	// Must be row/col request
+	col := mustAtoi(os.Args[2])
+	fmt.Printf("%d\n", genCodeNum(codeNumFromRowCol(row, col)))
+}
+
+func codeNumFromRowCol(r int, c int) int {
+	if r == 1 {
+		if c == 1 {
+			return 1
+		}
+		return c + codeNumFromRowCol(r, c-1)
+	}
+	if c == 1 {
+		return codeNumFromRowCol(1, (r-1)) + 1
+	}
+	return codeNumFromRowCol((r+1), (c-1)) + 1
+}
+
+func genCodeNum(i int) int64 {
+	ret := int64(20151125)
+	for i > 1 {
+		ret *= 252533
+		ret = ret % 33554393
+		i--
+	}
+	return ret
+}
+
+func mustAtoi(s string) int {
+	var i int
+	var err error
+	if i, err = strconv.Atoi(s); err != nil {
+		fmt.Println("Tried to atoi " + s)
+		os.Exit(1)
+	}
+	return i
+}
diff --git a/2015/day25/problem b/2015/day25/problem
new file mode 100644
index 0000000..88990ea
--- /dev/null
+++ b/2015/day25/problem
@@ -0,0 +1,106 @@
+                                           Advent of Code
+
+   br0xen 46*
+
+     • [About]
+     • [Stats]
+     • [Leaderboard]
+     • [Settings]
+     • [Log out]
+
+--- Day 25: Let It Snow ---
+
+   Merry Christmas! Santa is booting up his weather machine; looks like you might get a white
+   Christmas after all.
+
+   The weather machine beeps! On the console of the machine is a copy protection message asking
+   you to enter a code from the instruction manual. Apparently, it refuses to run unless you give
+   it that code. No problem; you'll just look up the code in the--
+
+   "Ho ho ho", Santa ponders aloud. "I can't seem to find the manual."
+
+   You look up the support number for the manufacturer and give them a call. Good thing, too -
+   that 49th star wasn't going to earn itself.
+
+   "Oh, that machine is quite old!", they tell you. "That model went out of support six minutes
+   ago, and we just finished shredding all of the manuals. I bet we can find you the code
+   generation algorithm, though."
+
+   After putting you on hold for twenty minutes (your call is very important to them, it reminded
+   you repeatedly), they finally find an engineer that remembers how the code system works.
+
+   The codes are printed on an infinite sheet of paper, starting in the top-left corner. The
+   codes are filled in by diagonals: starting with the first row with an empty first box, the
+   codes are filled in diagonally up and to the right. This process repeats until the infinite
+   paper is covered. So, the first few codes are filled in in this order:
+
+    | 1   2   3   4   5   6
+ ---+---+---+---+---+---+---+
+  1 |  1   3   6  10  15  21
+  2 |  2   5   9  14  20
+  3 |  4   8  13  19
+  4 |  7  12  18
+  5 | 11  17
+  6 | 16
+
+   For example, the 12th code would be written to row 4, column 2; the 15th code would be written
+   to row 1, column 5.
+
+   The voice on the other end of the phone continues with how the codes are actually generated.
+   The first code is 20151125. After that, each code is generated by taking the previous one,
+   multiplying it by 252533, and then keeping the remainder from dividing that value by 33554393.
+
+   So, to find the second code (which ends up in row 2, column 1), start with the previous value,
+   20151125. Multiply it by 252533 to get 5088824049625. Then, divide that by 33554393, which
+   leaves a remainder of 31916031. That remainder is the second code.
+
+   "Oh!", says the voice. "It looks like we missed a scrap from one of the manuals. Let me read
+   it to you." You write down his numbers:
+
+    |    1         2         3         4         5         6
+ ---+---------+---------+---------+---------+---------+---------+
+  1 | 20151125  18749137  17289845  30943339  10071777  33511524
+  2 | 31916031  21629792  16929656   7726640  15514188   4041754
+  3 | 16080970   8057251   1601130   7981243  11661866  16474243
+  4 | 24592653  32451966  21345942   9380097  10600672  31527494
+  5 |    77061  17552253  28094349   6899651   9250759  31663883
+  6 | 33071741   6796745  25397450  24659492   1534922  27995004
+
+   "Now remember", the voice continues, "that's not even all of the first few numbers; for
+   example, you're missing the one at 7,1 that would come before 6,2. But, it should be enough to
+   let your-- oh, it's time for lunch! Bye!" The call disconnects.
+
+   Santa looks nervous. Your puzzle input contains the message on the machine's console. What
+   code do you give the machine?
+
+   Your puzzle answer was 19980801.
+
+   The first half of this puzzle is complete! It provides one gold star: *
+
+--- Part Two ---
+
+   The machine springs to life, then falls silent again. It beeps. "Insufficient fuel", the
+   console reads. "Fifty stars are required before proceeding. One star is available."
+
+   ..."one star is available"? You check the fuel tank; sure enough, a lone star sits at the
+   bottom, awaiting its friends. Looks like you need to provide 49 yourself.
+
+   You don't have enough stars to start the machine, though. You need x more.
+
+   You can also [Shareon Twitter Google+ Reddit] this puzzle.
+
+References
+
+   Visible links
+   . http://adventofcode.com/
+   . http://adventofcode.com/about
+   . http://adventofcode.com/stats
+   . http://adventofcode.com/leaderboard
+   . http://adventofcode.com/settings
+   . http://adventofcode.com/auth/logout
+   . http://adventofcode.com/day/1
+   . https://en.wikipedia.org/wiki/Copy_protection#Early_video_games
+   . https://en.wikipedia.org/wiki/Cantor's_diagonal_argument
+   . https://twitter.com/intent/tweet?text=I%27ve+completed+Part+One+of+%22Let+It+Snow%22+%2D+Day+25+%2D+Advent+of+Code&url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F25&related=ericwastl&hashtags=AdventOfCode
+   . https://plus.google.com/share?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F25
+   . http://www.reddit.com/submit?url=http%3A%2F%2Fadventofcode%2Ecom%2Fday%2F25&title=I%27ve+completed+Part+One+of+%22Let+It+Snow%22+%2D+Day+25+%2D+Advent+of+Code
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