make hamburger / 以�

Author: JustDevRae

JustDevRae/Queue/make_hamburger.js

@@ -0,0 +1,20 @@
+function solution(ingredient) {
+  const burger = [];
+  let answer = 0;
+  for (let i of ingredient) {
+    burger.push(i);
+
+    if (
+      burger.length >= 4 &&
+      burger[burger.length - 4] === 1 &&
+      burger[burger.length - 3] === 2 &&
+      burger[burger.length - 2] === 3 &&
+      burger[burger.length - 1] === 1
+    ) {
+      burger.splice(burger.length - 4, 4);
+      answer++;
+    }
+  }
+
+  return answer;
+}