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Day07 + optimizations

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This commit is contained in:
Hubert Van De Walle
2020-12-07 10:47:14 +01:00
parent b38cdcde07
commit f2280bc2b5
7 changed files with 669 additions and 17 deletions
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days/src/main/kotlin/Day04.kt
+6 -6
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@@ -11,8 +11,8 @@ typealias Entries = List<Entry>
@Day(4)
class Day04(@Text val input: Input<String>) {
val entries: List<Entries> = input.value.trim().split("\n\n").map {
it.replace("\n", " ").split(" ").map { it.split(":").let { (k, v) -> k.trim() to v.trim() } }
val entries = input.value.split("\n\n").map {
it.split(" ", "\n").map { it.split(":").let { (k, v) -> k to v } }
}
private fun Entries.hasRequiredKeys() = map { it.first }
@@ -20,10 +20,10 @@ class Day04(@Text val input: Input<String>) {
fun part1() = entries.count { it.hasRequiredKeys() }
private val hclRegex = "^#[0-9a-f]{6}$".toRegex()
private val pidRegex = "^[0-9]{9}$".toRegex()
private val hclRegex = Regex("#[0-9a-f]{6}")
private val pidRegex = Regex("[0-9]{9}")
private fun Entry.hasValidValues() = let { (k, v) ->
private fun Entry.isValid() = let { (k, v) ->
when (k) {
"byr" -> v.toInt() in 1920..2002
"iyr" -> v.toInt() in 2010..2020
@@ -40,7 +40,7 @@ class Day04(@Text val input: Input<String>) {
}
}
fun part2() = entries.count { it.hasRequiredKeys() && it.all { it.hasValidValues() } }
fun part2() = entries.count { it.hasRequiredKeys() && it.all { it.isValid() } }
}
fun main() = with(createDay<Day04>()) {