[BOJ] 제로 / 실버4 / 10분

Author: JYP0824

JYP/제로.py

@@ -0,0 +1,11 @@
+num = int(input())
+a = []
+
+for i in range(num):
+    b = int(input())
+    
+    if b == 0:
+        a.pop()
+    else:
+        a.append(b)
+print(sum(a))