Add AOC2024 day 25, part 1

aoc/src/main/kotlin/com/fwdekker/aoc/y2024/Day25.kt

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+package com.fwdekker.aoc.y2024
+
+import com.fwdekker.aoc.Day
+import com.fwdekker.std.collections.seconds
+import com.fwdekker.std.grid.Chart
+import com.fwdekker.std.grid.col
+import com.fwdekker.std.grid.cols
+import com.fwdekker.std.grid.firstRow
+import com.fwdekker.std.sections
+
+
+// See https://adventofcode.com/2024/day/25
+class Day25(sample: Int? = null) : Day(year = 2024, day = 25, sample = sample) {
+    private val sections = input.sections()
+    private val height = sections.first().size
+
+    private val products = sections
+        .map { product -> product.map { it.toList() } }
+        .map { product -> product.firstRow.all { it == '#' } to product.toHeights() }
+    private val locks = products.filter { it.first }.seconds()
+    private val keys = products.filter { !it.first }.seconds()
+
+
+    override fun part1() =
+        locks.sumOf { lock -> keys.count { key -> lock.zip(key) { a, b -> a + b }.all { it <= height } } }
+
+    override fun part2() = 0
+
+
+    private fun Chart.toHeights(): List<Int> = cols.map { col -> col(col).count { it == '#' } }
+}
+
+
+fun main() = Day25().run()

aoc/src/test/kotlin/com/fwdekker/aoc/y2024/Day25Test.kt

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+package com.fwdekker.aoc.y2024
+
+import com.fwdekker.std.ChallengeTest
+import io.kotest.core.annotation.Tags
+
+
+@Tags("2024")
+object Day25Test : ChallengeTest(
+    ::Day25,
+    listOf(
+        case(part = 1, sample = 1) to 3,
+//        case(part = 2, sample = 1) to TODO(),
+        case(part = 1) to 3344,
+//        case(part = 2) to TODO(),
+    )
+)