백준 12605_단어순서 뒤집기_JAVA

https://www.acmicpc.net/problem/12605

12605번: 단어순서 뒤집기

import java.util.*;
import java.io.*;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        int N = Integer.parseInt(br.readLine());
        StringBuilder sb = new StringBuilder();

        for (int i = 0; i < N; i++) {
            sb.append("Case #" + (i + 1) + ":");
            Stack<String> stack = new Stack<>();
            String[] strArr = br.readLine().split(" ");
            
            for (int j = 0; j < strArr.length; j++) {
                stack.push(strArr[j]);
                stack.push(" ");
            }

            while (!stack.isEmpty()) {
                sb.append(stack.pop());
            }
            sb.append("\n");
        }

        System.out.print(sb);
    }
}

 

회고

- 간단한 스택 + 문자열 문제였다.