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This commit is contained in:
128
2024/go/day20/day20.go
Normal file
128
2024/go/day20/day20.go
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@@ -0,0 +1,128 @@
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package day20
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import (
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"adventofcode2024/utils/dijkstra"
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"adventofcode2024/utils/grid2d"
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"adventofcode2024/utils/inputs"
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"fmt"
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)
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type (
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Vec struct{ x, y int }
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Dir struct{ x, y int }
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Cell rune
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Move struct {
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p Vec
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d Dir
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}
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Maze struct {
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height, width int
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start Vec
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end Vec
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grid *grid2d.Grid[Cell]
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}
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)
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const (
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WALL Cell = '#'
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CORRIDOR Cell = '.'
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START Cell = 'S'
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END Cell = 'E'
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PATH Cell = '*'
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)
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var (
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NORTH = Dir{0, -1}
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EAST = Dir{1, 0}
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SOUTH = Dir{0, 1}
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WEST = Dir{-1, 0}
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DIRECTIONS = []Dir{NORTH, EAST, SOUTH, WEST}
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)
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func Part1(input string) int {
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maze := Maze{}.Parse(input)
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fmt.Println(maze)
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data := inputGraph(*maze)
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graph := dijkstra.CreateGraph(data)
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path, dist := dijkstra.GetShortestPath(data.From, data.To, graph)
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for _, p := range path {
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maze.grid.Set(p.X, p.Y, PATH)
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}
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fmt.Println(maze)
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return dist
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}
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func Part2(input string) int {
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maze := Maze{}.Parse(input)
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fmt.Println(maze)
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data := inputGraph(*maze)
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graph := dijkstra.CreateGraph(data)
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_, count := dijkstra.GetShortestPath(data.From, data.To, graph)
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return count
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}
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func inputGraph(maze Maze) dijkstra.InputGraph {
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data := dijkstra.InputGraph{}
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data.From = dijkstra.Point{X: maze.start.x, Y: maze.start.y}
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data.To = dijkstra.Point{X: maze.end.x, Y: maze.end.y}
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for y := 0; y < maze.height; y++ {
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for x := 0; x < maze.width; x++ {
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if maze.grid.Get(x, y) == WALL {
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continue
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}
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for _, dir := range DIRECTIONS {
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nx, ny := x+dir.x, y+dir.y
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if nx < 0 || ny < 0 || nx >= maze.width || ny >= maze.height {
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continue
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}
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if maze.grid.Get(nx, ny) == WALL {
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continue
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}
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data.Graph = append(data.Graph, dijkstra.InputData{
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Source: dijkstra.Point{X: x, Y: y},
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Destination: dijkstra.Point{X: nx, Y: ny},
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Weight: 1,
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})
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}
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}
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}
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return data
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}
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func (m Maze) Parse(input string) *Maze {
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m.grid = inputs.ToGrid2D(input, "\n", "", '?', func(c string) Cell { return Cell(c[0]) })
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m.height, m.width = m.grid.SizeY(), m.grid.SizeX()
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for y := 0; y < m.height; y++ {
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for x := 0; x < m.width; x++ {
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c := m.grid.Get(x, y)
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switch c {
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case WALL, CORRIDOR:
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m.grid.Set(x, y, c)
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case START:
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m.grid.Set(x, y, CORRIDOR)
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m.start = Vec{x, y}
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case END:
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m.grid.Set(x, y, CORRIDOR)
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m.end = Vec{x, y}
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}
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}
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}
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return &m
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}
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func (m *Maze) String() string {
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s := ""
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for y := 0; y < m.height; y++ {
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for x := 0; x < m.width; x++ {
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if y == m.start.y && x == m.start.x {
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s += string(START)
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} else if y == m.end.y && x == m.end.x {
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s += string(END)
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} else {
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s += string(m.grid.Get(x, y))
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}
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}
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s += "\n"
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}
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return s
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}
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31
2024/go/day20/day20_test.go
Normal file
31
2024/go/day20/day20_test.go
Normal file
@@ -0,0 +1,31 @@
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package day20
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import (
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestPart1(t *testing.T) {
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r := Part1(`###############
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#...#...#.....#
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#.#.#.#.#.###.#
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#S#...#.#.#...#
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#######.#.#.###
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#######.#.#...#
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#######.#.###.#
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###..E#...#...#
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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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###############`)
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require.Equal(t, 100, r)
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}
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func TestPart2(t *testing.T) {
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r := Part2("")
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require.Equal(t, 0, r)
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}
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141
2024/go/day20/input.txt
Normal file
141
2024/go/day20/input.txt
Normal file
@@ -0,0 +1,141 @@
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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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###.#.#.#.#.#.#.#.#######.#####.#.#.#.#.###############.###.#.#.###.#.#.#.#.#.#######.#.#.#.###.#.#.#####.#.#.#.#.#.###.#.#.#########.#.#.#.#
|
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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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#...#.#.#.###.....#...#.......#.....#.#.#...#...#...#...#...#...#...#.#.#...#.#.#.#...#.#.#...#...#...#...#.#.#...#...#...#...#.........#...#
|
||||
###.#.#.#.###.###.#.###############.#.#.###.#.###.#.#######.###.###.#.#.###.#.#.#.#####.#.#.###########.#.#.#.#.###.###.###.#.#.#########.#.#
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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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||||
###.###.###.#.###.###.###.#####.###########.#######.###.#####.#######.#####.###.#.###.#####.#.###.#.###.#.#.#########.#.#####.#.#.###.#.#.###
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||||
#...#...#...#...#...#...#.....#...#.....#...#.......#...#.....#.....#.....#.#...#.#...#.....#...#.#...#.#.#.........#.#.....#...#.....#...###
|
||||
#.###.###.#####.###.###.#####.###.#.###.#.###.#######.###.#####.###.#####.#.#.###.#.###.#######.#.###.#.#.#########.#.#####.#################
|
||||
#...#...#.....#.###...#.#...#...#.#.#...#...#.###...#...#.....#...#...#...#...#...#...#.....#...#.#...#...#.....#...#.......#...#.....#.....#
|
||||
###.###.#####.#.#####.#.#.#.###.#.#.#.#####.#.###.#.###.#####.###.###.#.#######.#####.#####.#.###.#.#######.###.#.###########.#.#.###.#.###.#
|
||||
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|
||||
#.###.#####.###.#.###############.#.#.#.#######.#.#.#.###.#####.###.#####.#.#############.#####.#####.#.###########.#.###.#.#.#####.###.#.###
|
||||
#.#...#...#...#.#.......#...#...#...#.#.#.......#.#...#...#...#...#.#####.#.#...###...###...#...#...#.#...#.....###.#.....#.#.#.....###.#...#
|
||||
#.#.###.#.###.#.#######.#.#.#.#.#####.#.#.#######.#####.###.#.###.#.#####.#.#.#.###.#.#####.#.###.#.#.###.#.###.###.#######.#.#.#######.###.#
|
||||
#.#...#.#...#.#.#.......#.#...#.#...#.#.#.#.....#.....#.....#.#...#...#...#.#.#...#.#.#.....#...#.#.#.#...#.#...#...#.......#.#.........#...#
|
||||
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|
||||
#.#...#.#...#.#...#.......#...#.#.#.#.#.#.#.#...#...#.......#.#...#...#...#.#.#...#.#.#.....#...#.#.#.#.###.#.....#...#...###.#.........#...#
|
||||
#.#.###.#.###.#####.#######.#.#.#.#.#.#.#.#.#.###.#.#######.#.###.#.#####.#.#.#.###.#.#####.#.###.#.#.#.###.#######.###.#.###.#.#######.###.#
|
||||
#.#.#...#...#.......#...###.#.#...#.#...#.#.#.#...#...#...#.#...#.#.#...#.#.#.#...#.#.#...#.#.#...#.#.#.....#.....#.....#.....#.......#...#.#
|
||||
#.#.#.#####.#########.#.###.#.#####.#####.#.#.#.#####.#.#.#.###.#.#.#.#.#.#.#.###.#.#.#.#.#.#.#.###.#.#######.###.###################.###.#.#
|
||||
#.#.#.....#.#...#.....#...#.#.....#.....#.#.#.#...#...#.#.#...#.#.#...#.#.#...###...#...#.#.#...###.#...#.....###...#.......#...#...#.#...#.#
|
||||
#.#.#####.#.#.#.#.#######.#.#####.#####.#.#.#.###.#.###.#.###.#.#.#####.#.###############.#.#######.###.#.#########.#.#####.#.#.#.#.#.#.###.#
|
||||
#.#.......#.#.#.#.......#.#.....#.......#...#...#.#.#...#...#.#...#.....#...........#.....#...#...#.....#.........#.#.....#.#.#...#.#.#...#.#
|
||||
#.#########.#.#.#######.#.#####.###############.#.#.#.#####.#.#####.###############.#.#######.#.#.###############.#.#####.#.#.#####.#.###.#.#
|
||||
#.........#.#.#.#...#...#...###.............#...#.#.#...#...#.#.....#.....#.....#...#.....#...#.#.................#.......#...#...#...#...#.#
|
||||
#########.#.#.#.#.#.#.#####.###############.#.###.#.###.#.###.#.#####.###.#.###.#.#######.#.###.###############################.#.#####.###.#
|
||||
#.........#...#...#...#...#...#.........#...#...#.#.#...#...#.#...#...#E..#...#.#...#.....#...#.....#...........................#.....#...#.#
|
||||
#.#####################.#.###.#.#######.#.#####.#.#.#.#####.#.###.#.#########.#.###.#.#######.#####.#.###############################.###.#.#
|
||||
#.........#...#.........#.#...#.......#.#.....#...#.#.#...#...###...#########.#.#...#.#...#...#.....#.#.........#.............#...#...#...#.#
|
||||
#########.#.#.#.#########.#.#########.#.#####.#####.#.#.#.###################.#.#.###.#.#.#.###.#####.#.#######.#.###########.#.#.#.###.###.#
|
||||
#.........#.#.#.#.........#.....###...#.#.....#.....#...#.....###############.#.#.#...#.#.#...#.......#.......#...#.........#...#.#...#.....#
|
||||
#.#########.#.#.#.#############.###.###.#.#####.#############.###############.#.#.#.###.#.###.###############.#####.#######.#####.###.#######
|
||||
#.........#.#.#.#.......#.....#.....###...#...#.....#...#.....###############.#...#.#...#...#.#...............#...#.#.....#.....#...#.#.....#
|
||||
#########.#.#.#.#######.#.###.#############.#.#####.#.#.#.###################.#####.#.#####.#.#.###############.#.#.#.###.#####.###.#.#.###.#
|
||||
#.........#.#.#.#.....#...###.......#...#...#.....#.#.#.#.....###############.....#...#...#...#...#.............#...#...#.......#...#...#...#
|
||||
#.#########.#.#.#.###.#############.#.#.#.#######.#.#.#.#####.###################.#####.#.#######.#.###################.#########.#######.###
|
||||
#...#...#...#...#...#.............#...#...#.......#...#.#.....###################.....#.#.........#.#...........#.......#.....###.......#...#
|
||||
###.#.#.#.#########.#############.#########.###########.#.###########################.#.###########.#.#########.#.#######.###.#########.###.#
|
||||
###...#...#.........#...#.......#.....#...#.....#...#...#.....###################...#.#...#.........#.........#...#...#...#...#...#...#.....#
|
||||
###########.#########.#.#.#####.#####.#.#.#####.#.#.#.#######.###################.#.#.###.#.#################.#####.#.#.###.###.#.#.#.#######
|
||||
#...###...#...........#...#.....#...#...#.......#.#.#.........###################.#...###...#...............#.......#.#.#...###.#...#.......#
|
||||
#.#.###.#.#################.#####.#.#############.#.#############################.###########.#############.#########.#.#.#####.###########.#
|
||||
#.#...#.#.#...#...#.........#.....#...............#.......#...###################...#...#...#.....#.......#.....#...#...#.#...#.#...........#
|
||||
#.###.#.#.#.#.#.#.#.#########.###########################.#.#.#####################.#.#.#.#.#####.#.#####.#####.#.#.#####.#.#.#.#.###########
|
||||
#...#...#...#.#.#.#...#.......#...#...#...#...#...#...#...#.#...#############...#...#.#...#.......#.#.....#...#...#.....#...#...#.....#.....#
|
||||
###.#########.#.#.###.#.#######.#.#.#.#.#.#.#.#.#.#.#.#.###.###.#############.#.#.###.#############.#.#####.#.#########.#############.#.###.#
|
||||
###.....#...#...#.###...#...#...#...#...#.#.#...#.#.#...#...#...#############.#.#.#...#...#.........#.......#...#.....#...............#.#...#
|
||||
#######.#.#.#####.#######.#.#.###########.#.#####.#.#####.###.###############.#.#.#.###.#.#.###################.#.###.#################.#.###
|
||||
###...#...#.....#.....#...#...#.....#...#...#...#...#...#...#.###############.#...#.....#.#.#.........###.......#.#...#.......#...###...#...#
|
||||
###.#.#########.#####.#.#######.###.#.#.#####.#.#####.#.###.#.###############.###########.#.#.#######.###.#######.#.###.#####.#.#.###.#####.#
|
||||
#...#...........#...#...#...#...###...#...#...#.......#.....#...#...###...#S..###...#...#...#...#...#.....#...#...#...#.#.....#.#...#.#...#.#
|
||||
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|
||||
#...#.....#...#...#...#...#...#.......#...#...#...........#...#...#.....#...#.....#.#.#.###...#...#.........#...#...#...#...###.#...#.#.#...#
|
||||
###.#.###.#.#.#.#####.#.#######.#####.#.#####.#.#########.#.#.#############.#.#####.#.#.###.#.###################.#.#######.###.#.###.#.#####
|
||||
###...#...#.#.#.#...#...#...###.....#.#...#...#.....#...#.#.#.#...#.....#...#...#...#.#.....#.......#...........#.#.#.....#.....#.....#.....#
|
||||
#######.###.#.#.#.#.#####.#.#######.#.###.#.#######.#.#.#.#.#.#.#.#.###.#.#####.#.###.#############.#.#########.#.#.#.###.#################.#
|
||||
###...#.....#...#.#.......#.......#.#.....#.#.......#.#.#...#...#.#...#.#.#.....#...#.............#.#.........#...#...###.....#.....#.......#
|
||||
###.#.###########.###############.#.#######.#.#######.#.#########.###.#.#.#.#######.#############.#.#########.###############.#.###.#.#######
|
||||
#...#.#...#...###...............#.#.....#...#.#...#...#.....#.....#...#...#.......#...#...#.......#.....#...#.........#...###...###.#.......#
|
||||
#.###.#.#.#.#.#################.#.#####.#.###.#.#.#.#######.#.#####.#############.###.#.#.#.###########.#.#.#########.#.#.#########.#######.#
|
||||
#...#.#.#...#...................#.....#.#...#...#...#.......#.......###.....#...#...#.#.#.#...........#...#.#.......#...#.........#.#.......#
|
||||
###.#.#.#############################.#.###.#########.#################.###.#.#.###.#.#.#.###########.#####.#.#####.#############.#.#.#######
|
||||
#...#...#.....#.....................#.#.....#.......#.......#.....#...#...#...#.....#...#.....#.....#.....#.#.....#...#...#...#...#.#.#...###
|
||||
#.#######.###.#.###################.#.#######.#####.#######.#.###.#.#.###.###################.#.###.#####.#.#####.###.#.#.#.#.#.###.#.#.#.###
|
||||
#...#.....###.#.#.................#.#.#.....#.#...#.......#...#...#.#.###.........#...#.....#.#...#.###...#.....#...#.#.#.#.#...#...#...#...#
|
||||
###.#.#######.#.#.###############.#.#.#.###.#.#.#.#######.#####.###.#.###########.#.#.#.###.#.###.#.###.#######.###.#.#.#.#.#####.#########.#
|
||||
###.#.#.....#...#...............#...#.#.#...#...#.......#.......#...#.#...#...#...#.#.#.#...#.###.#...#.......#.....#...#...#...#.....#...#.#
|
||||
###.#.#.###.###################.#####.#.#.#############.#########.###.#.#.#.#.#.###.#.#.#.###.###.###.#######.###############.#.#####.#.#.#.#
|
||||
#...#.#...#.#...###.............#...#...#...#.....#...#...#...###...#...#.#.#.#...#.#.#.#...#.....#...#.......#.......#...###.#...###...#...#
|
||||
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#...#...#...#...###...#####.....#...#.........#...###.....#.....#...#...###.......#####.......###...#...#...###...#...........#...#...#.....#
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||||
#############################################################################################################################################
|
||||
@@ -99,7 +99,7 @@ func main() {
|
||||
|
||||
// Reads day from os.Args.
|
||||
func day() int {
|
||||
latest := 18
|
||||
latest := 19
|
||||
if len(os.Args) == 1 {
|
||||
return latest
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user