백준 2675번: 문자열 반복 - Java(자바)

 

 

 

풀이

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import java.io.*;
import java.util.StringTokenizer;
 
public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringBuilder sb = new StringBuilder();
 
        int t = Integer.parseInt(br.readLine());
        for (int i = 0; i < t; i++) {
            StringTokenizer st = new StringTokenizer(br.readLine());
            int r = Integer.parseInt(st.nextToken());
            String s = st.nextToken();
            for (int j = 0; j < s.length(); j++)
                sb.append(String.valueOf(s.charAt(j)).repeat(r));
            sb.append("\n");
        }
        System.out.print(sb);
 
        br.close();
    }
}