advent-of-code/2021
advent-of-code/2021
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day(08): reformat

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Signed-off-by: Matej Focko <mfocko@redhat.com>
This commit is contained in:
Matej Focko 2021-12-09 00:09:28 +01:00
parent 6bfe301f7b
commit a06cc306b8
1 changed files with 12 additions and 3 deletions
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15
src/year2021/day08/Day08.kt
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@ -75,14 +75,23 @@ fun part1(input: List<String>): Int = input.sumOf { entry ->
val (patterns, output) = entry.split(" | ") val (patterns, output) = entry.split(" | ")
val decodedPatterns = Patterns(patterns).decode() val decodedPatterns = Patterns(patterns).decode()
output.split(" ").map { it.toSet() }.count { decodedPatterns.values.contains(it) } output
.split(" ")
.count { decodedPatterns.values.contains(it.toSet()) }
} }
fun part2(input: List<String>): Int = input.sumOf { entry -> fun part2(input: List<String>): Int = input.sumOf { entry ->
val (patterns, output) = entry.split(" | ") val (patterns, output) = entry.split(" | ")
val decodedPatterns = Patterns(patterns).decode(true).map { (key, value) -> Pair(value, key) }.toMap() val decodedPatterns = Patterns(patterns)
.decode(true)
.map { (key, value) -> Pair(value, key) }
.toMap()
output.split(" ").map { it.toSet() }.fold(0) { n, digit -> 10 * n + decodedPatterns[digit]!! }.toLong() output
.split(" ")
.map { it.toSet() }
.fold(0) { n, digit -> 10 * n + decodedPatterns[digit]!! }
.toLong()
}.toInt() }.toInt()
fun main() { fun main() {