AoC | Day 6 | Part 1

package year_2023.day_6

fun partOne() {
    println("[2023] Day six, part one...")

    val times = input().split("\n")[0]
        .substringAfter(":")
        .split(" ")
        .filter { it.isNotBlank() }
        .map { it.trim().toInt() }

    val distances = input().split("\n")[1]
        .substringAfter(":")
        .split(" ")
        .filter { it.isNotBlank() }
        .map { it.trim().toInt() }

    val waysToBeatPerRound = mutableListOf<Int>()

    repeat(times.size) {
        val time = times[it]
        val distance = distances[it]
        var validCounter = 0

        (1..time).forEach { timeHolding ->
            val speed = timeHolding
            val remainingTime = time - timeHolding
            val totalDistance = speed * remainingTime

            if (totalDistance > distance) {
                validCounter++
            }
        }

        waysToBeatPerRound.add(validCounter)
    }

    val result = waysToBeatPerRound.reduce { acc, i -> acc * i }
    println(result)
}