1 files changed, 0 insertions, 48 deletions
diff --git a/2021-kotlin/src/Day11.kt b/2021-kotlin/src/Day11.kt
deleted file mode 100644
index db56d61..0000000
--- a/2021-kotlin/src/Day11.kt
+++ /dev/null
@@ -1,48 +0,0 @@
-object Day11 {
-    private fun flashSequence(input: Map<Pos2D, Int>) = sequence {
-        val map = input.toMutableMap()
-
-        while (true) {
-            val flashed = mutableSetOf<Pos2D>()
-            fun canFlash(entry: Map.Entry<Pos2D, Int>): Boolean = entry.value > 9 && !flashed.contains(entry.key)
-
-            // 1)
-            map.forEach { (pos, energy) -> map[pos] = energy + 1 }
-
-            // 2)
-            while (map.any(::canFlash)) {
-                map
-                    .filter(::canFlash)
-                    .forEach { (pos, _) ->
-                        flashed.add(pos)
-                        Pos2D.directions8.map { pos + it }.forEach {
-                            if (map.containsKey(it)) {
-                                map[it] = map[it]!! + 1
-                            }
-                        }
-                    }
-            }
-
-            // 3)
-            flashed.forEach { map[it] = 0 }
-
-            yield(flashed.size)
-        }
-    }
-
-    fun bothParts(input: List<String>) = flashSequence(parseToMap(input)).let { seq ->
-        seq.take(100).sum() to seq.indexOfFirst { it == 100 } + 1
-    }
-}
-
-fun main() {
-    val testInput = readInputAsLines("Day11_test")
-    val testOutput = Day11.bothParts(testInput)
-    check(testOutput.first == 1656)
-    check(testOutput.second == 195)
-
-    val input = readInputAsLines("Day11")
-    val output = Day11.bothParts(input)
-    println(output.first)
-    println(output.second)
-}