[알고리즘문제풀기] 문자열 반복해서 출력하기

문제

내가 작성한 정답

import java.util.Scanner;

class Solution {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String str = sc.next();
        int n = sc.nextInt();
        System.out.print(str.repeat(n));
    }
}

import java.util.Scanner;

class Solution {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String str = sc.next();
        int n = sc.nextInt();
        for(int i=0; i<n; i++){
            System.out.print(str);
        }
    }
}

다른 사람들의 정답

import java.util.Scanner;

public class Solution {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String str = sc.next();
        int n = sc.nextInt();
        StringBuilder sb = new StringBuilder();
        for(int i=0; i<n; i++){
            sb.append(str);
        }
        String s = sb.toString();
        System.out.println(s);
    }
}