✨ Finit le jour 6

README.md

@@ -5,6 +5,6 @@
 | Lundi   | Mardi   | Mercredi | Jeudi   | Vendredi | Samedi  | Dimanche |
 |---------|---------|----------|---------|----------|---------|----------|
 |         |         |          | 1 ✅✅    | 2 ✅✅     | 3 ✅✅    | 4 ✅✅     |
-| 5 ✅✅    | 6 🔲🔲  | 7 🔲🔲   | 8 🔲🔲  | 9 🔲🔲   | 10 🔲🔲 | 11 🔲🔲  |
+| 5 ✅✅    | 6 ✅✅    | 7 🔲🔲   | 8 🔲🔲  | 9 🔲🔲   | 10 🔲🔲 | 11 🔲🔲  |
 | 12 🔲🔲 | 13 🔲🔲 | 14 🔲🔲  | 15 🔲🔲 | 16 🔲🔲  | 17 🔲🔲 | 18 🔲🔲  |
 | 19 🔲🔲 | 20 🔲🔲 | 21 🔲🔲  | 22 🔲🔲 | 23 🔲🔲  | 24 🔲🔲 | 25 🔲🔲  |

day_6/part_1.php

@@ -0,0 +1,10 @@
+<?php
+
+$buffer = str_split(file_get_contents('./input.txt'));
+
+for ($start = 0, $max = count($buffer); $start < $max; $start++) {
+    $slice = array_slice($buffer, $start, 4);
+    if (count(array_unique($slice)) === 4) {
+        echo $start + 4; exit;
+    }
+}

day_6/part_2.php

@@ -0,0 +1,10 @@
+<?php
+
+$buffer = str_split(file_get_contents('./input.txt'));
+
+for ($start = 0, $max = count($buffer); $start < $max; $start++) {
+    $slice = array_slice($buffer, $start, 14);
+    if (count(array_unique($slice)) === 14) {
+        echo $start + 14; exit;
+    }
+}