[백준] - #10773: 제로

문제 출처 : https://www.acmicpc.net/

 

---

#10773: 제로 (언어 : Java11)

---

제출 답안

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Stack;

public class Main {
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		Stack<Integer> list = new Stack<Integer>();
		int result = 0;
		int interval = Integer.parseInt(br.readLine());
		
		for(int i=0; i<interval; i++) {
			int num = Integer.parseInt(br.readLine());
			if(num==0) {
				list.pop();
			}
			else {
				list.push(num);
			}
		}
		
		for(int num : list) {
			result += num;
		}
		
		System.out.println(result);
		br.close();
	}
}

---

comment

- 재현이는 그럴거면 가서 청소나 해