val input = readText("y2019/w2/d08/input.txt")
val width = 25
val height = 6

fun main() {
    val layers = input.chunked(width * height)

    println("Part 1: " + layers.minBy { c -> c.count { it == '0' } }
            ?.let { layer -> layer.count { it == '1' } * layer.count { it == '2' } })

    val result = (0 until height).map { y -> (0 until width).map { x ->
        layers.map { it[y * width + x] }.find { it != '2' } ?: '2'
    } }.joinToString("\n") { it.joinToString("") {
        when (it) {
            '0' -> " "
            '1' -> "#"
            else -> it.toString()
        }
    } }
    println("Part 2:")
    println(result)
}