c/aoc-2024
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Code Issues Releases Activity

Cleanup

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Christian
2024-12-02 08:20:59 +01:00
parent cfd2c5cc45
commit b744cb5aa6
1 changed files with 11 additions and 10 deletions
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21
src/main/scala/days/Day02.scala
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@@ -10,21 +10,22 @@ object Day02 extends Solver(2):
.map(line => line.split(" ").map(_.toInt).toList) .map(line => line.split(" ").map(_.toInt).toList)
.toList .toList
def valid(list: List[Int]): Boolean = def safe(list: List[Int]): Boolean =
val isSorted = (list.sorted == list || list.sorted.reverse == list) list.length < 2 || list
val notTooLarge = list.sliding(2).map(x => (x(1) - x(0)).abs).forall(_ <= 3) .sliding(2)
val notTooSmall = list.sliding(2).map(x => (x(1) - x(0)).abs).forall(_ >= 1) .collect { case List(a, b) => b - a }
isSorted && notTooLarge && notTooSmall .forall(1 to 3 contains _)
def part1(lists: List[List[Int]]): Int = lists.count(valid) def safeWithGap(list: List[Int]): Boolean =
list.indices.exists(i => safe(list.take(i) ++ list.drop(i + 1)))
def part1(lists: List[List[Int]]): Int =
lists.count(list => safe(list) || safe(list.reverse))
def part2(lists: List[List[Int]]): Int = def part2(lists: List[List[Int]]): Int =
lists.count(list => lists.count(list => safeWithGap(list) || safeWithGap(list.reverse))
list.indices.exists(i => valid(list.take(i) ++ list.drop(i + 1)))
)
def run(input: String): (Timings, Solution) = def run(input: String): (Timings, Solution) =
val (pre_time, pre_input) = timed { pre(input) } val (pre_time, pre_input) = timed { pre(input) }
val (p1_time, p1_solution) = timed { part1(pre_input) } val (p1_time, p1_solution) = timed { part1(pre_input) }
val (p2_time, p2_solution) = timed { part2(pre_input) } val (p2_time, p2_solution) = timed { part2(pre_input) }