[BaekJoon] 백준 2675번 문자열 반복 - Java

🎈문제

https://www.acmicpc.net/problem/2675

 

💬설명

• for문을 사용하여 알파벳을 반복 출력하자
• .chatAt()을 사용하여 알파벳 1개씩 출력하도록 하자

 

⌨️ CODE

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

public class Main {

	public static void main(String[] args) throws IOException {
		
		int T, R;
		String S;
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
		
		T = Integer.parseInt(br.readLine());
		
		for(int i = 0 ; i < T ; i ++) {
			
			String[] st = br.readLine().split(" ");
			R = Integer.parseInt(st[0]);
			S = st[1];
			
			for(int j = 0 ; j < S.length() ; j++) {
				for(int k = 0 ; k < R ; k++) {
					bw.write(S.charAt(j));
				}
			}
			bw.newLine();
		}
		bw.flush();
		bw.close();
		br.close();
	}
}