컨트롤_제트(기초)

Author: unn04012

unn04012/stack/ctrl_z.js

@@ -0,0 +1,19 @@
+function solution(s) {
+  const stack = [];
+  let answer = 0;
+
+  s.split(' ').forEach((e) => {
+    // 숫자가 아니면
+    if (Number.isNaN(Number(e))) {
+      answer -= stack.pop();
+    } else {
+      const num = Number(e);
+      answer += num;
+      stack.push(num);
+    }
+  });
+
+  return answer;
+}
+
+console.log(solution('10 Z 20 Z'));