2019 Day 24 Complete
This commit is contained in:
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847235118b
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5
2019/day24/input
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5
2019/day24/input
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##.#.
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.#.##
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.#...
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#..#.
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.##..
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112
2019/day24/layout.go
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112
2019/day24/layout.go
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package main
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import (
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"log"
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"math"
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"strings"
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"io/ioutil"
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h "git.bullercodeworks.com/brian/adventofcode/helpers"
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)
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type Layout struct {
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Area map[h.Coordinate]bool
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BottomRight h.Coordinate
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History map[string]float64
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}
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func NewLayout(filename string) *Layout {
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ret := Layout{
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Area: make(map[h.Coordinate]bool),
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BottomRight: h.Coordinate{X: 0, Y: 0},
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History: make(map[string]float64),
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}
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input, err := ioutil.ReadFile(filename)
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if err != nil {
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log.Fatal(err.Error())
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}
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lines := make([]string, 0)
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for _, line := range strings.Split(string(input), "\n") {
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lines = append(lines, line)
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}
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for y := 0; y < len(lines); y++ {
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if len(lines[y]) < ret.BottomRight.X {
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break
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}
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ret.BottomRight.Y = y
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for x := 0; x < len(lines[y]); x++ {
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ret.BottomRight.X = x
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ret.Area[h.Coordinate{X: x, Y: y}] = lines[y][x] == '#'
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}
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}
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ret.SaveToHistory()
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return &ret
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}
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func (l Layout) SaveToHistory() {
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l.History[l.String()] = l.Rating()
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}
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func (l Layout) Rating() float64 {
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var rating, pow float64
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for y := 0; y <= l.BottomRight.Y; y++ {
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for x := 0; x <= l.BottomRight.X; x++ {
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if l.Area[h.Coordinate{X: x, Y: y}] {
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rating = rating + math.Pow(2, pow)
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}
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pow++
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}
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}
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return rating
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}
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func (l Layout) Step() bool {
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a := make(map[h.Coordinate]bool)
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for k, v := range l.Area {
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a[k] = v
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}
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for y := 0; y <= l.BottomRight.Y; y++ {
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for x := 0; x <= l.BottomRight.X; x++ {
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c := h.Coordinate{X: x, Y: y}
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neighbors := 0
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for _, v := range []h.Coordinate{c.North(), c.East(), c.South(), c.West()} {
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if n, ok := l.Area[v]; ok && n {
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neighbors++
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}
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}
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if l.Area[c] {
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if neighbors != 1 {
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a[c] = false
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}
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} else {
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if neighbors == 1 || neighbors == 2 {
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a[c] = true
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}
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}
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}
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}
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for k, v := range a {
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l.Area[k] = v
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}
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// Finally check/save to history
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_, ok := l.History[l.String()]
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l.History[l.String()] = l.Rating()
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return ok
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}
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func (l Layout) String() string {
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var ret string
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for y := 0; y <= l.BottomRight.Y; y++ {
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for x := 0; x <= l.BottomRight.X; x++ {
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if l.Area[h.Coordinate{X: x, Y: y}] {
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ret = ret + "#"
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} else {
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ret = ret + "."
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}
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}
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ret = ret + "\n"
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}
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return ret
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}
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215
2019/day24/layout3d.go
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215
2019/day24/layout3d.go
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package main
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import (
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"fmt"
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"io/ioutil"
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"log"
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"strings"
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h "git.bullercodeworks.com/brian/adventofcode/helpers"
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)
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type Layout3d struct {
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Area map[h.Coordinate3d]bool
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TopLeft h.Coordinate3d
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BottomRight h.Coordinate3d
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}
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func NewLayout3d(filename string) *Layout3d {
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ret := Layout3d{
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Area: make(map[h.Coordinate3d]bool),
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TopLeft: h.Coordinate3d{X: 0, Y: 0, Z: 0},
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BottomRight: h.Coordinate3d{X: 0, Y: 0, Z: 0},
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}
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input, err := ioutil.ReadFile(filename)
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if err != nil {
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log.Fatal(err.Error())
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}
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lines := make([]string, 0)
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for _, line := range strings.Split(string(input), "\n") {
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lines = append(lines, line)
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}
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for y := 0; y < len(lines); y++ {
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if len(lines[y]) < ret.BottomRight.X {
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break
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}
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ret.BottomRight.Y = y
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for x := 0; x < len(lines[y]); x++ {
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ret.BottomRight.X = x
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ret.Area[h.Coordinate3d{X: x, Y: y}] = lines[y][x] == '#'
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}
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}
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return &ret
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}
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func (l *Layout3d) Step() {
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a := make(map[h.Coordinate3d]bool)
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for k, v := range l.Area {
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a[k] = v
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}
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middle := h.Coordinate{X: l.BottomRight.X / 2, Y: l.BottomRight.Y / 2}
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for z := l.TopLeft.Z - 1; z <= l.BottomRight.Z+1; z++ {
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for y := l.TopLeft.Y; y <= l.BottomRight.Y; y++ {
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for x := l.TopLeft.X; x <= l.BottomRight.X; x++ {
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c := h.Coordinate3d{X: x, Y: y, Z: z}
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if x == middle.X && y == middle.Y {
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a[c] = false
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continue
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}
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neighbors := l.GetNeighborCount(c)
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if l.Area[c] {
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if neighbors != 1 {
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a[c] = false
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}
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} else {
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if neighbors == 1 || neighbors == 2 {
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a[c] = true
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// If c is on a new 'z', we need to expand our TopLeft/BottomRight
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if c.Z < l.TopLeft.Z {
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l.TopLeft.Z = c.Z
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} else if c.Z > l.BottomRight.Z {
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l.BottomRight.Z = c.Z
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}
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}
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}
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}
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}
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}
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for k, v := range a {
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l.Area[k] = v
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}
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}
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func (l *Layout3d) GetNeighborCount(c h.Coordinate3d) int {
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middle := h.Coordinate3d{X: l.BottomRight.X / 2, Y: l.BottomRight.Y / 2, Z: c.Z}
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var neighbors []h.Coordinate3d
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if c.Y == l.TopLeft.Y {
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neighbors = append(neighbors, middle.Up().North())
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neighbors = append(neighbors, c.South())
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if c.X == l.TopLeft.X {
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neighbors = append(neighbors, middle.Up().West())
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neighbors = append(neighbors, c.East())
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} else if c.X == l.BottomRight.X {
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neighbors = append(neighbors, middle.Up().East())
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neighbors = append(neighbors, c.West())
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} else {
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neighbors = append(neighbors, c.West())
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neighbors = append(neighbors, c.East())
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}
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} else if c.Y == l.BottomRight.Y {
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neighbors = append(neighbors, middle.Up().South())
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neighbors = append(neighbors, c.North())
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if c.X == l.TopLeft.X {
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neighbors = append(neighbors, middle.Up().West())
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neighbors = append(neighbors, c.East())
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} else if c.X == l.BottomRight.X {
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neighbors = append(neighbors, middle.Up().East())
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neighbors = append(neighbors, c.West())
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} else {
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neighbors = append(neighbors, c.West())
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neighbors = append(neighbors, c.East())
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}
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} else if c.X == l.TopLeft.X {
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neighbors = append(neighbors, middle.Up().West())
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neighbors = append(neighbors, c.East())
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if c.Y == l.TopLeft.Y {
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neighbors = append(neighbors, middle.Up().North())
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neighbors = append(neighbors, c.South())
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} else if c.Y == l.BottomRight.Y {
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neighbors = append(neighbors, middle.Up().South())
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neighbors = append(neighbors, c.North())
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} else {
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neighbors = append(neighbors, c.South())
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neighbors = append(neighbors, c.North())
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}
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} else if c.X == l.BottomRight.X {
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neighbors = append(neighbors, middle.Up().East())
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neighbors = append(neighbors, c.West())
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if c.Y == l.TopLeft.Y {
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neighbors = append(neighbors, middle.Up().North())
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neighbors = append(neighbors, c.South())
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} else if c.Y == l.BottomRight.Y {
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neighbors = append(neighbors, middle.Up().South())
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neighbors = append(neighbors, c.North())
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} else {
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neighbors = append(neighbors, c.South())
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neighbors = append(neighbors, c.North())
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}
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} else if c.Y == middle.Y-1 && c.X == middle.X {
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neighbors = append(neighbors, c.North())
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neighbors = append(neighbors, c.East())
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neighbors = append(neighbors, c.West())
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// South is the North row of the lower grid
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for x := l.TopLeft.X; x <= l.BottomRight.X; x++ {
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neighbors = append(neighbors, h.Coordinate3d{X: x, Y: l.TopLeft.Y, Z: c.Down().Z})
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}
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} else if c.Y == middle.Y+1 && c.X == middle.X {
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neighbors = append(neighbors, c.East())
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neighbors = append(neighbors, c.South())
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neighbors = append(neighbors, c.West())
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// North is the South row of the lower grid
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for x := l.TopLeft.X; x <= l.BottomRight.X; x++ {
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neighbors = append(neighbors, h.Coordinate3d{X: x, Y: l.BottomRight.Y, Z: c.Down().Z})
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}
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} else if c.X == middle.X-1 && c.Y == middle.Y {
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neighbors = append(neighbors, c.North())
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neighbors = append(neighbors, c.South())
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neighbors = append(neighbors, c.West())
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// East is the West row of the lower grid
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for y := l.TopLeft.Y; y <= l.BottomRight.Y; y++ {
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neighbors = append(neighbors, h.Coordinate3d{X: l.TopLeft.X, Y: y, Z: c.Down().Z})
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}
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} else if c.X == middle.X+1 && c.Y == middle.Y {
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neighbors = append(neighbors, c.North())
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neighbors = append(neighbors, c.East())
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neighbors = append(neighbors, c.South())
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// West is the East row of the lower grid
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for y := l.TopLeft.Y; y <= l.BottomRight.Y; y++ {
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neighbors = append(neighbors, h.Coordinate3d{X: l.BottomRight.X, Y: y, Z: c.Down().Z})
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}
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} else {
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neighbors = append(neighbors, c.North())
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neighbors = append(neighbors, c.East())
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neighbors = append(neighbors, c.South())
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neighbors = append(neighbors, c.West())
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}
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ret := 0
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for _, v := range neighbors {
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if n, ok := l.Area[v]; ok && n {
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ret++
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}
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}
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return ret
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}
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func (l *Layout3d) CountBugs() int {
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var ret int
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for _, v := range l.Area {
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if v {
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ret++
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}
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}
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return ret
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}
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func (l Layout3d) String() string {
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var ret string
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middle := h.Coordinate{X: l.BottomRight.X / 2, Y: l.BottomRight.Y / 2}
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for z := l.TopLeft.Z; z <= l.BottomRight.Z; z++ {
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ret = fmt.Sprintf("%s\nDepth %d:\n", ret, z)
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for y := l.TopLeft.Y; y <= l.BottomRight.Y; y++ {
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for x := l.TopLeft.X; x <= l.BottomRight.X; x++ {
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if x == middle.X && y == middle.Y {
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ret = ret + "?"
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} else if l.Area[h.Coordinate3d{X: x, Y: y, Z: z}] {
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ret = ret + "#"
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} else {
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ret = ret + "."
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}
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}
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ret = ret + "\n"
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}
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}
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return ret
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}
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39
2019/day24/main.go
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39
2019/day24/main.go
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@ -0,0 +1,39 @@
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package main
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import (
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"fmt"
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h "git.bullercodeworks.com/brian/adventofcode/helpers"
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)
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func main() {
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filename := "input"
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if h.GetArgNumber(1) != "" {
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filename = h.GetArgNumber(1)
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}
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if h.GetArgNumber(2) != "2" {
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part1(filename)
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} else {
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part2(filename)
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}
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}
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func part1(filename string) {
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l := NewLayout(filename)
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for !l.Step() {
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fmt.Println(h.CLEAR_SCREEN)
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fmt.Println(l)
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fmt.Println(int(l.Rating()))
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}
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fmt.Println(h.CLEAR_SCREEN)
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fmt.Println(l)
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fmt.Println(int(l.Rating()))
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}
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func part2(filename string) {
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l := NewLayout3d(filename)
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for i := 0; i < 200; i++ {
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l.Step()
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}
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fmt.Println("Bugs:", l.CountBugs())
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}
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5
2019/day24/testinput
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5
2019/day24/testinput
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@ -0,0 +1,5 @@
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....#
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#..#.
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#..##
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..#..
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#....
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@ -14,6 +14,19 @@ func NewCoordinate(x, y int) *Coordinate {
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return &Coordinate{x, y}
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}
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func (c *Coordinate) North() Coordinate {
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return Coordinate{X: c.X, Y: c.Y - 1}
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}
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func (c *Coordinate) East() Coordinate {
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return Coordinate{X: c.X + 1, Y: c.Y}
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}
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func (c *Coordinate) South() Coordinate {
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return Coordinate{X: c.X, Y: c.Y + 1}
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}
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func (c *Coordinate) West() Coordinate {
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return Coordinate{X: c.X - 1, Y: c.Y}
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}
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func (c *Coordinate) GetNorthCoord() *Coordinate {
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return &Coordinate{
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X: c.X,
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@ -10,6 +10,25 @@ func NewCoordinate3d(x, y, z int) *Coordinate3d {
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return &Coordinate3d{x, y, z}
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}
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func (c Coordinate3d) North() Coordinate3d {
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return Coordinate3d{X: c.X, Y: c.Y - 1, Z: c.Z}
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}
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func (c Coordinate3d) East() Coordinate3d {
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return Coordinate3d{X: c.X + 1, Y: c.Y, Z: c.Z}
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}
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func (c Coordinate3d) South() Coordinate3d {
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return Coordinate3d{X: c.X, Y: c.Y + 1, Z: c.Z}
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}
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func (c Coordinate3d) West() Coordinate3d {
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return Coordinate3d{X: c.X - 1, Y: c.Y, Z: c.Z}
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}
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func (c Coordinate3d) Up() Coordinate3d {
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return Coordinate3d{X: c.X, Y: c.Y, Z: c.Z + 1}
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}
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func (c Coordinate3d) Down() Coordinate3d {
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return Coordinate3d{X: c.X, Y: c.Y, Z: c.Z - 1}
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}
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func (c *Coordinate3d) GetNorthCoord() *Coordinate3d {
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return &Coordinate3d{
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X: c.X,
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