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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| package org.lemon.advent.year2024 | ||
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| import org.lemon.advent.lib._ | ||
| import org.lemon.advent.lib.`2d`._ | ||
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| private object Day25: | ||
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| def parse(input: String) = | ||
| import org.lemon.advent.lib.parse.{given, _} | ||
| input match | ||
| case Chunk(areas @ _*) => areas.map(Coord.gridToMap) | ||
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| def part1(input: String) = | ||
| val grids = parse(input) | ||
| val locks = grids.filter(_(Coord(0, 0)) == '#') | ||
| val keys = grids.filterNot(_(Coord(0, 0)) == '#') | ||
| locks.cartesianProduct(keys) | ||
| .count((lock, key) => lock.forall((coord, cell) => cell != '#' || key(coord) != '#')) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| package org.lemon.advent.year2024 | ||
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| import org.lemon.advent._ | ||
| import org.lemon.advent.year2024.Day25._ | ||
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| class Day25Test extends UnitTest: | ||
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| test("part 1 example") { | ||
| val in = """|##### | ||
| |.#### | ||
| |.#### | ||
| |.#### | ||
| |.#.#. | ||
| |.#... | ||
| |..... | ||
| | | ||
| |##### | ||
| |##.## | ||
| |.#.## | ||
| |...## | ||
| |...#. | ||
| |...#. | ||
| |..... | ||
| | | ||
| |..... | ||
| |#.... | ||
| |#.... | ||
| |#...# | ||
| |#.#.# | ||
| |#.### | ||
| |##### | ||
| | | ||
| |..... | ||
| |..... | ||
| |#.#.. | ||
| |###.. | ||
| |###.# | ||
| |###.# | ||
| |##### | ||
| | | ||
| |..... | ||
| |..... | ||
| |..... | ||
| |#.... | ||
| |#.#.. | ||
| |#.#.# | ||
| |#####""".stripMargin | ||
| part1(in) shouldBe 3 | ||
| } | ||
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| test("part 1") { | ||
| part1(read(file(2024)(25))) shouldBe 2900 | ||
| } |