2024 - Day 25 - part 1 - no part 2 as usual...

fmmr · Dec 25, 2024 · 962d3f2 · 962d3f2
1 parent de70581
commit 962d3f2
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Showing 2 changed files with 28 additions and 17 deletions.
diff --git a/src/main/kotlin/no/rodland/advent_2024/Day25.kt b/src/main/kotlin/no/rodland/advent_2024/Day25.kt
@@ -1,35 +1,45 @@
 package no.rodland.advent_2024
 
 import no.rodland.advent.Day
+import no.rodland.advent.toCave
 
 // template generated: 25/12/2024
 // Fredrik Rødland 2024
 
-class Day25(val input: List<String>) : Day<Long, Long, List<String>> {
+class Day25(val input: List<String>) : Day<Int, Long, Pair<List<String>, List<String>>> {
 
     private val parsed = input.parse()
+    private val locks = parsed.first.map { it.split("\n").toCave() }
+    private val keys = parsed.second.map { it.split("\n").toCave() }
+    val x = 0..4
+    val y = 0..6
+
+    override fun partOne(): Int {
+        val free = locks.map { lock ->
+            x.map { x ->
+                y.count { y -> lock[y][x] == '.' }
+            }
+        }
+        val used = keys.map { lock ->
+            x.map { x ->
+                y.count { y -> lock[y][x] == '#' } - 1
+            }
+        }
 
-    override fun partOne(): Long {
-        return 2
+        return used.sumOf { key ->
+            free.count { lock ->
+                key.zip(lock).all { it.second - it.first > 0 }
+            }
+        }
     }
 
     override fun partTwo(): Long {
         return 2
     }
 
-    override fun List<String>.parse(): List<String> {
-
+    override fun List<String>.parse(): Pair<List<String>, List<String>> {
         val (locks, keys) = joinToString("\n").split("\n\n").partition { it.startsWith("#####") }
-        return map { line ->
-            line
-        }
-    }
-    sealed interface Thing
-    data class Lock(val init: String): Thing {
-
-    }
-    data class Key(val init: String): Thing {
-
+        return locks to keys
     }
 
     override val day = "25".toInt()

diff --git a/src/test/kotlin/no/rodland/advent_2024/Day25Test.kt b/src/test/kotlin/no/rodland/advent_2024/Day25Test.kt
@@ -15,9 +15,9 @@ internal class Day25Test {
     private val data25 = "2024/input_25.txt".readFile()
     private val test25 = "2024/input_25_test.txt".readFile()
 
-    private val resultTestOne = 2L
+    private val resultTestOne = 3
     private val resultTestTwo = 2L
-    private val resultOne = 2L
+    private val resultOne = 3249
     private val resultTwo = 2L
 
     val test = defaultTestSuiteParseOnInit(
@@ -29,6 +29,7 @@ internal class Day25Test {
         resultTwo,
         { Day25(data25) },
         { Day25(test25) },
+        numTestPart1 = 20
     )
 
     @Nested