✨ Finit le jour 10

2021-12-10 09:24:39 +01:00
parent c290b5fee6
commit 592bc62c63
2 changed files with 80 additions and 0 deletions
--- a/day_10/part_1.php
+++ b/day_10/part_1.php
@@ -0,0 +1,33 @@
+<?php
+
+$lines = explode("\n", file_get_contents('./input.txt'));
+
+$scores = [
+    ')' => 3,
+    ']' => 57,
+    '}' => 1197,
+    '>' => 25137,
+];
+
+$corrupted = [];
+
+foreach ($lines as $line) {
+    $chunks = [];
+    foreach (str_split($line) as $chunk) {
+        switch ($chunk) {
+            case '(': $chunks[] = ')';break;
+            case '[': $chunks[] = ']';break;
+            case '{': $chunks[] = '}';break;
+            case '<': $chunks[] = '>';break;
+            default:
+                $last_chunk = array_pop($chunks);
+                if ($last_chunk !== $chunk) {
+                    $corrupted[] = $chunk;
+                }
+        }
+    }
+}
+
+echo array_sum(array_map(static function ($score) use ($scores) {
+    return $scores[$score];
+}, $corrupted));