2017 Day 19 Complete!
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+-----|---------------|-----------------------------------------|------R------|-----------+ +-----------------------+ +-----+ | | | |
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| | | | | | | | | | | | | | | +---|-|-|---------|-|---------|-|-------------|---|-----|-----------------|---|-----|------------------U--------|-----|---|---|---|-------|-------|-|-+ |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | +---|-+ | | | | | | | | | | | | | | | | | +-+ | | | | | | | | | | | | | | | | | | | | | | | | | | +-+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | +-|-|-------|---|---|-----------|-|-+ | | | | | | | | | | | | | | | | | | | | | | +-----------|-|-----------|---|-------+ | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | +-------|-------+ | | | | | | | | | | | | | | | | | | | | | | | +-----+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | +-----|-|-----------|-----|-----|-------------|-|-|-|---|-----------------------|---|-|-|---|-|-----------|---|---------|-------------------------|-|-|-|-+ | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | | | +---|-|-------|-----+ | | | | | | | | | +---------|-----+ | | | | | | | | | | | | | | | +-|-|---------------|-----|-|---|---+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | +-----+ | | | | | +-|-----------+ | | | | | | +-+ | | | | | | | | | | | +-------------+ +-+ | +-----|-|---------+ | | | +---------|-------|---+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | +---------------------------|-+ | +---|---|-------------+ | | | +-------+ | | | | | | | | | | | | +-------------------------|---------|---+ | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | | | +-----|-|-------------|---------+ | | +-|-----|-|---------------|-|---|---|-|-----------|-----------------------|-------------|---|-------|-------------|-----|-|-------+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | | | | | | | +---|---+ +---------+ +-------------|-------|-|---------------|-|-----------|---|-----------------------+ | | | | | | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | +-------|-------|-|---------------|---------------|-----------|-----------|---|-|---|---|-|-|---------|-----------------------|---|-|-------|---------|-|---|---------------+ | +-+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | +-|-----|-----|-----|-----|---------|-----+ | +-------------|---|-----|-|-------|-|-|---|-|---+ | | +-|---------------------------|-------------|-----------------|---------------------|-------+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | +-----|---+ | | | | | | | | | +-|-----------+ +-+ | +-+ | | | | | | | +---|-|-----------------|-------------------+ | | | | | | | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | +---+ | | | | | | | | | | | | | | | | +-+ | | | +---|-+ +-------------------|-------------|---------|-|-|-----|---|-----|-----------------------|-----+ |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | +-------|-------------|---------------|-----------------------|-|-|-------------|-|-----|---|---|---|-------------------------------------|-|-|--------A|-----|-|-----------+ | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
+---------------|-|---------|-|-|-------|-----|-----|---------------------------------|-|-|-----|-------|---|-------------|-------------------------|-----------+ +---------------|-------|-------+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | | | | +-----------|-----------------|-----|-|-----------------|-----|---|-------|-------------------------------------|-+ | | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
+-|-|-----------------------------------------------|-----------|-----|---------------|-----------|-------------------------------+ | +-+ | | | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | +-----|-|-|---|---|---------------------------------------|-----------------|-|-|---------|---------------------|-------+ | | | | | +-----------+ | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | +-----|--K--|-----------|-+ | +-----|-----|-----------|-----|-|-|---------------------+ | | | +---------------------------------|-|-------+ | | +---|---|-------|---------------+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | +-----|-------+ | | | | | | | +-----|-|-|-------|-------|---------------|-----------------|-|-------------|-----------+ | | +-----+ | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | +-+ +-------|---|-----------------|-----------------|-----|---|-----|-----|-|-----------|-------|---------|---------+ | | | | | | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | +---------------------|-----+ | | | | | | | | | | | | +-|-----------------+ | | | | | +---|-----------+ | | +-----|-------+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | +-------------------|-----------------|---------------------|-|-|-|-----+ | +-+ +-----|---------+ | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | +-----------------------------------|-------------------------------------------------------------|---------|---|-----------------|-----+ | | +-------+ | | +-+
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | | | | | | | +---|---|-----|---+ | | | | | | | | | | |
|
||||||
|
| | | | | | | | | | | | | | | | | | | | | | | | | |
|
||||||
|
+---------+ +-------|---------------------------------------------|---------------------------------|-----+ | | +-------+ | | | | +-----|-+ |
|
||||||
|
| | | | | | | | | | | | | | | | | | | |
|
||||||
|
+-------------------------+ | | | | +-|-----------|-----------------|-----------------|---|---+ | | +---------|-----------+ | | |
|
||||||
|
| | | | | | | | | | | | | | | | | |
|
||||||
|
| | | | | | +---------------------------+ +-|W--+ | +---------------------------+ | | |
|
||||||
|
| | | | | | | | | | | | | | | | | |
|
||||||
|
| +-------|---+ +---+ +---------------+ +---+ +---+ +-------------------------------------------+ +-+ |
|
||||||
|
| | | | | |
|
||||||
|
+---------+ +-------------------------------------------------------------------------------------------+ +---------------------------------+
|
||||||
|
|
||||||
180
2017/day19/main.go
Normal file
180
2017/day19/main.go
Normal file
@ -0,0 +1,180 @@
|
|||||||
|
package main
|
||||||
|
|
||||||
|
import (
|
||||||
|
"bufio"
|
||||||
|
"fmt"
|
||||||
|
"os"
|
||||||
|
"time"
|
||||||
|
|
||||||
|
termbox "github.com/nsf/termbox-go"
|
||||||
|
)
|
||||||
|
|
||||||
|
const (
|
||||||
|
N = iota
|
||||||
|
E
|
||||||
|
S
|
||||||
|
W
|
||||||
|
ERR
|
||||||
|
)
|
||||||
|
|
||||||
|
var network [][]byte
|
||||||
|
var message string
|
||||||
|
var ticks int
|
||||||
|
var nodes []byte
|
||||||
|
var width, height int
|
||||||
|
|
||||||
|
func main() {
|
||||||
|
// Grab the window size
|
||||||
|
if err := termbox.Init(); err != nil {
|
||||||
|
panic(err)
|
||||||
|
}
|
||||||
|
go func() {
|
||||||
|
for {
|
||||||
|
event := termbox.PollEvent()
|
||||||
|
if event.Key == termbox.KeyCtrlC {
|
||||||
|
termbox.Close()
|
||||||
|
os.Exit(0)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}()
|
||||||
|
width, height = termbox.Size()
|
||||||
|
|
||||||
|
network = StdinTo2DBytes()
|
||||||
|
PrintMap(0, 0)
|
||||||
|
|
||||||
|
posX, posY, dir := FindEntry(), 0, S
|
||||||
|
|
||||||
|
fmt.Println(posX, posY, dir)
|
||||||
|
for dir != ERR {
|
||||||
|
posX, posY, dir = Move(posX, posY, dir)
|
||||||
|
|
||||||
|
switch network[posY][posX] {
|
||||||
|
case '|', '-', '+':
|
||||||
|
case ' ':
|
||||||
|
fmt.Println("Invalid Move")
|
||||||
|
os.Exit(1)
|
||||||
|
default:
|
||||||
|
if len(nodes) == 0 || nodes[len(nodes)-1] != network[posY][posX] {
|
||||||
|
message = fmt.Sprint("Found node ", string(network[posY][posX]), "!")
|
||||||
|
nodes = append(nodes, network[posY][posX])
|
||||||
|
}
|
||||||
|
}
|
||||||
|
ticks++
|
||||||
|
PrintMap(posX, posY)
|
||||||
|
time.Sleep(time.Second / 10)
|
||||||
|
}
|
||||||
|
fmt.Println("")
|
||||||
|
}
|
||||||
|
|
||||||
|
func GetNodesAsString(nodes []byte) string {
|
||||||
|
ret := "[ "
|
||||||
|
for i := range nodes {
|
||||||
|
ret += string(nodes[i]) + " "
|
||||||
|
}
|
||||||
|
return ret + "]"
|
||||||
|
}
|
||||||
|
|
||||||
|
func Move(posX, posY, dir int) (int, int, int) {
|
||||||
|
chkX, chkY := posX, posY
|
||||||
|
switch dir {
|
||||||
|
case N:
|
||||||
|
chkY--
|
||||||
|
case E:
|
||||||
|
chkX++
|
||||||
|
case S:
|
||||||
|
chkY++
|
||||||
|
case W:
|
||||||
|
chkX--
|
||||||
|
}
|
||||||
|
|
||||||
|
if chkX < 0 || chkY < 0 || chkX > len(network[0]) || chkY > len(network) {
|
||||||
|
// Went off the map
|
||||||
|
return posX, posY, ERR
|
||||||
|
}
|
||||||
|
|
||||||
|
if network[chkY][chkX] == '+' {
|
||||||
|
// Which direction do we need to turn?
|
||||||
|
switch dir {
|
||||||
|
case N, S:
|
||||||
|
if CanMoveTo(chkX+1, chkY) {
|
||||||
|
dir = E
|
||||||
|
} else if CanMoveTo(chkX-1, chkY) {
|
||||||
|
dir = W
|
||||||
|
}
|
||||||
|
case E, W:
|
||||||
|
fmt.Println(len(network), chkY+1)
|
||||||
|
if CanMoveTo(chkX, chkY+1) {
|
||||||
|
dir = S
|
||||||
|
} else if CanMoveTo(chkX, chkY-1) {
|
||||||
|
dir = N
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return chkX, chkY, dir
|
||||||
|
}
|
||||||
|
|
||||||
|
func CanMoveTo(chkX, chkY int) bool {
|
||||||
|
if chkY < 0 && chkX < 0 && chkY > len(network) && chkX > len(network[chkY]) {
|
||||||
|
return false
|
||||||
|
}
|
||||||
|
fmt.Println(chkX, chkY)
|
||||||
|
return network[chkY][chkX] != ' '
|
||||||
|
}
|
||||||
|
|
||||||
|
func FindEntry() int {
|
||||||
|
for i := range network[0] {
|
||||||
|
if network[0][i] == '|' {
|
||||||
|
return i
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return -1
|
||||||
|
}
|
||||||
|
|
||||||
|
func PrintMap(posX, posY int) {
|
||||||
|
fmt.Print("\033[H\033[2J")
|
||||||
|
stX, stY := 0, 0
|
||||||
|
useHeight, useWidth := height-2, width
|
||||||
|
if posY > useHeight/2 {
|
||||||
|
stY = posY - (useHeight / 2)
|
||||||
|
}
|
||||||
|
if posX > width/2 {
|
||||||
|
stX = posX - (width / 2)
|
||||||
|
}
|
||||||
|
totHeight := useHeight/2 + posY
|
||||||
|
if totHeight < useHeight {
|
||||||
|
useHeight = useHeight + (useHeight - totHeight) + 4
|
||||||
|
}
|
||||||
|
totWidth := useWidth/2 + posX
|
||||||
|
if totWidth < useWidth {
|
||||||
|
useWidth = useWidth + (useWidth - totWidth) + 4
|
||||||
|
}
|
||||||
|
for y := stY; y < posY+(useHeight/2); y++ {
|
||||||
|
for x := stX; x < posX+(useWidth/2); x++ {
|
||||||
|
if len(network) > y {
|
||||||
|
if len(network[y]) > x {
|
||||||
|
if y == posY && x == posX {
|
||||||
|
fmt.Print("*")
|
||||||
|
} else {
|
||||||
|
fmt.Print(string(network[y][x]))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
fmt.Println("")
|
||||||
|
}
|
||||||
|
fmt.Print(ticks, " Ticks ", GetNodesAsString(nodes), "\n")
|
||||||
|
fmt.Println(message)
|
||||||
|
}
|
||||||
|
|
||||||
|
func StdinTo2DBytes() [][]byte {
|
||||||
|
var ret [][]byte
|
||||||
|
scanner := bufio.NewScanner(os.Stdin)
|
||||||
|
for scanner.Scan() {
|
||||||
|
bts := scanner.Bytes()
|
||||||
|
t := make([]byte, len(bts))
|
||||||
|
copy(t, bts)
|
||||||
|
ret = append(ret, t)
|
||||||
|
}
|
||||||
|
return ret
|
||||||
|
}
|
||||||
95
2017/day19/problem
Normal file
95
2017/day19/problem
Normal file
@ -0,0 +1,95 @@
|
|||||||
|
Advent of Code
|
||||||
|
|
||||||
|
--- Day 19: A Series of Tubes ---
|
||||||
|
|
||||||
|
Somehow, a network packet got lost and ended up here. It's trying to follow a routing diagram (your puzzle input),
|
||||||
|
but it's confused about where to go.
|
||||||
|
|
||||||
|
Its starting point is just off the top of the diagram. Lines (drawn with |, -, and +) show the path it needs to
|
||||||
|
take, starting by going down onto the only line connected to the top of the diagram. It needs to follow this path
|
||||||
|
until it reaches the end (located somewhere within the diagram) and stop there.
|
||||||
|
|
||||||
|
Sometimes, the lines cross over each other; in these cases, it needs to continue going the same direction, and
|
||||||
|
only turn left or right when there's no other option. In addition, someone has left letters on the line; these
|
||||||
|
also don't change its direction, but it can use them to keep track of where it's been. For example:
|
||||||
|
|
||||||
|
|
|
||||||
|
| +--+
|
||||||
|
A | C
|
||||||
|
F---|----E|--+
|
||||||
|
| | | D
|
||||||
|
+B-+ +--+
|
||||||
|
|
||||||
|
|
||||||
|
Given this diagram, the packet needs to take the following path:
|
||||||
|
|
||||||
|
• Starting at the only line touching the top of the diagram, it must go down, pass through A, and continue
|
||||||
|
onward to the first +.
|
||||||
|
• Travel right, up, and right, passing through B in the process.
|
||||||
|
• Continue down (collecting C), right, and up (collecting D).
|
||||||
|
• Finally, go all the way left through E and stopping at F.
|
||||||
|
|
||||||
|
Following the path to the end, the letters it sees on its path are ABCDEF.
|
||||||
|
|
||||||
|
The little packet looks up at you, hoping you can help it find the way. What letters will it see (in the order it
|
||||||
|
would see them) if it follows the path? (The routing diagram is very wide; make sure you view it without line
|
||||||
|
wrapping.)
|
||||||
|
|
||||||
|
Your puzzle answer was __________________.
|
||||||
|
|
||||||
|
--- Part Two ---
|
||||||
|
|
||||||
|
The packet is curious how many steps it needs to go.
|
||||||
|
|
||||||
|
For example, using the same routing diagram from the example above...
|
||||||
|
|
||||||
|
|
|
||||||
|
| +--+
|
||||||
|
A | C
|
||||||
|
F---|--|-E---+
|
||||||
|
| | | D
|
||||||
|
+B-+ +--+
|
||||||
|
|
||||||
|
|
||||||
|
...the packet would go:
|
||||||
|
|
||||||
|
• 6 steps down (including the first line at the top of the diagram).
|
||||||
|
• 3 steps right.
|
||||||
|
• 4 steps up.
|
||||||
|
• 3 steps right.
|
||||||
|
• 4 steps down.
|
||||||
|
• 3 steps right.
|
||||||
|
• 2 steps up.
|
||||||
|
• 13 steps left (including the F it stops on).
|
||||||
|
|
||||||
|
This would result in a total of 38 steps.
|
||||||
|
|
||||||
|
How many steps does the packet need to go?
|
||||||
|
|
||||||
|
Your puzzle answer was _________.
|
||||||
|
|
||||||
|
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.
|
||||||
|
|
||||||
|
References
|
||||||
|
|
||||||
|
Visible links
|
||||||
|
. http://adventofcode.com/
|
||||||
|
. http://adventofcode.com/2017/about
|
||||||
|
. http://adventofcode.com/2017/support
|
||||||
|
. http://adventofcode.com/2017/events
|
||||||
|
. http://adventofcode.com/2017/settings
|
||||||
|
. http://adventofcode.com/2017/auth/logout
|
||||||
|
. http://adventofcode.com/2017
|
||||||
|
. http://adventofcode.com/2017
|
||||||
|
. http://adventofcode.com/2017/leaderboard
|
||||||
|
. http://adventofcode.com/2017/stats
|
||||||
|
. http://adventofcode.com/2017/sponsors
|
||||||
|
. http://adventofcode.com/2017/sponsors
|
||||||
|
. https://teespring.com/advent-of-code
|
||||||
|
. https://teespring.com/advent-of-code-eu
|
||||||
|
. http://adventofcode.com/2017
|
||||||
|
. http://adventofcode.com/2017/day/19/input
|
||||||
7
2017/day19/testinput
Normal file
7
2017/day19/testinput
Normal file
@ -0,0 +1,7 @@
|
|||||||
|
|
|
||||||
|
| +--+
|
||||||
|
A | C
|
||||||
|
F---|----E|--+
|
||||||
|
| | | D
|
||||||
|
+B-+ +--+
|
||||||
|
|
||||||
Loading…
Reference in New Issue
Block a user