[SW expert Academy] SWEA 1222번 계산기1 자바(Java)

[D4] [S/W 문제해결 기본] 6일차 - 계산기1 - 1222

문제 링크

성능 요약

메모리: 20,628 KB, 시간: 134 ms, 코드길이: 644 Bytes

제출 일자

2023-11-15 09:38

출처: SW Expert Academy, https://swexpertacademy.com/main/code/problem/problemList.do

import java.util.Scanner;
import java.util.Stack;
class Solution {
	public static void main(String args[]) throws Exception {
		Scanner sc = new Scanner(System.in);
		for(int tc = 1; tc <= 10; tc++) {
            sc.nextInt();
            Stack<Integer> stack = new Stack<>();
            String line = sc.next();
            stack.push(line.charAt(0) - '0');
            for(int i = 1; i < line.length(); i++){
                if(line.charAt(i) != '+'){
                    stack.push(stack.pop() + line.charAt(i) - '0');                   
                }
            }
            System.out.println("#" + tc + " " + stack.pop());
		}
	}
}