Combine AoC Repos

2016-12-16 16:21:15 -06:00
parent 5977b28d73
commit 105dbd1ff7
151 changed files with 9081 additions and 1 deletions
--- a/2016/day02/main.go
+++ b/2016/day02/main.go
@@ -0,0 +1,111 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	input := stdinToStringSlice()
+	var press []rune
+	keypad := initKeypad("diamond")
+	pos := '5'
+	for _, i := range input {
+		for _, j := range i {
+			pos = moveFinger(j, pos, keypad)
+		}
+		press = append(press, pos)
+	}
+	fmt.Println("Code: ", string(press))
+}
+
+func moveFinger(dir rune, start rune, keypad map[string]rune) rune {
+	// Find the starting button
+	var startX, startY int
+	for k, v := range keypad {
+		if v == start {
+			// Found it
+			strCoords := strings.Split(k, ";")
+			startY = atoi(strCoords[0])
+			startX = atoi(strCoords[1])
+		}
+	}
+	switch dir {
+	case 'U':
+		newY := startY - 1
+		if keypad[itoa(newY)+";"+itoa(startX)] != 0 {
+			return keypad[itoa(newY)+";"+itoa(startX)]
+		}
+	case 'R':
+		newX := startX + 1
+		if keypad[itoa(startY)+";"+itoa(newX)] != 0 {
+			return keypad[itoa(startY)+";"+itoa(newX)]
+		}
+	case 'D':
+		newY := startY + 1
+		if keypad[itoa(newY)+";"+itoa(startX)] != 0 {
+			return keypad[itoa(newY)+";"+itoa(startX)]
+		}
+	case 'L':
+		newX := startX - 1
+		if keypad[itoa(startY)+";"+itoa(newX)] != 0 {
+			return keypad[itoa(startY)+";"+itoa(newX)]
+		}
+	}
+	return start
+}
+
+func initKeypad(tp string) map[string]rune {
+	ret := make(map[string]rune)
+	switch tp {
+	case "diamond":
+		ret["0;2"] = '1'
+		ret["1;1"] = '2'
+		ret["1;2"] = '3'
+		ret["1;3"] = '4'
+		ret["2;0"] = '5'
+		ret["2;1"] = '6'
+		ret["2;2"] = '7'
+		ret["2;3"] = '8'
+		ret["2;4"] = '9'
+		ret["3;1"] = 'A'
+		ret["3;2"] = 'B'
+		ret["3;3"] = 'C'
+		ret["4;2"] = 'D'
+	case "square":
+		currKey := 1
+		for i := 0; i < 3; i++ {
+			for j := 0; j < 3; j++ {
+				ret[itoa(i)+";"+itoa(j)] = rune(currKey)
+				currKey++
+			}
+		}
+	}
+	return ret
+}
+
+func itoa(i int) string {
+	return strconv.Itoa(i)
+}
+
+func atoi(i string) int {
+	var ret int
+	var err error
+	if ret, err = strconv.Atoi(i); err != nil {
+		log.Fatal("Invalid Atoi")
+	}
+	return ret
+}
+
+func stdinToStringSlice() []string {
+	var input []string
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		input = append(input, scanner.Text())
+	}
+	return input
+}