[백준] 2675 문자열 반복 - Implementation / Java

• 문제 링크

2675번: 문자열 반복

 

• 풀이 코드

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        StringBuilder sb = new StringBuilder();

        int t = Integer.parseInt(br.readLine());
        while (t-- > 0) {
            StringTokenizer st = new StringTokenizer(br.readLine());
            int r = Integer.parseInt(st.nextToken());

            for (char c : st.nextToken().toCharArray()) for (int i = 0; i < r; i++) sb.append(c);
            sb.append("\n");
        }

        bw.write(sb.toString());
        bw.flush();
    }

}