๋ฌธ์
https://www.acmicpc.net/problem/10773
ํ์ด
# ๋ฐฑ์ค 10773๋ฒ ๋ฌธ์ - ์ ๋ก
n = int(input())
stack = []
for i in range(n):
num = int(input())
if num == 0:
stack.pop()
else:
stack.append(num)
print(sum(stack))
์ด ๋ฌธ์ ๋ ์คํ์ ์ด์ฉํด ์ฝ๊ฒ ํ ์ ์์๋ค.
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