60 lines
1 KiB
Text
60 lines
1 KiB
Text
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#!/usr/bin/env kotlin
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import java.io.File
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fun MutableList<MutableList<Char>>.clone(): MutableList<MutableList<Char>> {
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val grid = mutableListOf<MutableList<Char>>()
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var i = 0;
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this.forEach {
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grid.add(MutableList(it.size) { j ->
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this[i][j]
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})
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i++
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}
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return grid
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}
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enum class Direction {
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UP,
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DOWN,
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RIGHT,
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LEFT;
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fun rotate90(): Direction {
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return when (this) {
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UP -> RIGHT
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DOWN -> LEFT
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RIGHT -> DOWN
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LEFT -> UP
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}
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}
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}
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var originalGrid = mutableListOf<MutableList<Char>>()
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var originalGuy = Pair(0, 0);
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var originalDirection = Direction.UP
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var i = 0
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File("./input.txt").forEachLine {
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val iter = it.chars().iterator()
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var j = 0
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originalGrid.add(MutableList(it.length) {
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var next = iter.next().toChar()
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if (next == '^') {
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originalGuy = Pair(i, j)
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next = '.'
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}
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j++
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next
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})
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i++
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}
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println("\n" + sum)
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