2024 - Day 11 - reformatted.

fmmr · Dec 11, 2024 · e82eaea · e82eaea
1 parent 68d6f71
commit e82eaea
Showing 1 changed file with 2 additions and 8 deletions.
diff --git a/src/main/kotlin/no/rodland/advent_2024/Day11.kt b/src/main/kotlin/no/rodland/advent_2024/Day11.kt
@@ -20,9 +20,7 @@ class Day11(val input: List<String>) : Day<Long, Long, List<Long>> {
 
     private fun Long.numberStones(i: Int, memoization: MutableMap<Pair<Long, Int>, Long>): Long {
         if (i == 0) return 1
-        if (memoization.containsKey(this to i)) {
-            return memoization[this to i]!!
-        }
+        memoization[this to i]?.let { return it }
         return this.runRules().sumOf { it.numberStones(i - 1, memoization) }.also { memoization[this to i] = it }
     }
 
@@ -57,8 +55,4 @@ class Day11(val input: List<String>) : Day<Long, Long, List<Long>> {
     }
 
     override val day = "11".toInt()
-}
-
-
-
-
+}