🎉 Hello world

2019-12-06 14:32:52 +01:00
commit 4cefe61056
7 changed files with 224 additions and 0 deletions
--- a/day_2/part_1.php
+++ b/day_2/part_1.php
@@ -0,0 +1,26 @@
+<?php
+$input = explode(',', file_get_contents('input.txt'));
+
+// don't forget : 12 @ position 1 && 2 @ position 2
+
+$i = 0;
+while($input[$i] !== 99) {
+    [$operation, $first, $second, $position] = array_slice($input, $i, 4);
+    switch ($operation) {
+        case 1:
+            $input[$position] = $input[$first] + $input[$second];
+            break;
+        case 2:
+            $input[$position] = $input[$first] * $input[$second];
+            break;
+        case 99:
+            echo $input[0];
+            exit;
+        default:
+            echo 'unknown operation : '.$operation;
+            exit;
+    }
+    $i += 4;
+}
+
+echo $input[0];