✨ Finit le jour 7 partie 1

day_7/part_1.php

@@ -0,0 +1,26 @@
+<?php
+
+include '../functions.php';
+
+$rows = explode("\n", file_get_contents("input.txt"));
+
+$count_split = 0;
+$indexes = [];
+
+$indexes[] = array_search('S', str_split(array_shift($rows)));
+
+
+foreach ($rows as $row) {
+    foreach ($indexes as $index) {
+        if ($row[$index] === '^') {
+            $indexes[] = $index-1;
+            $indexes[] = $index+1;
+            unset($indexes[array_search($index, $indexes)]);
+            $indexes = array_unique($indexes);
+            $count_split++;
+        }
+    }
+}
+
+
+echo $count_split;