[알고리즘문제풀기] 문자열 반복해서 출력하기

문제

내가 작성한 정답

Java

// System.out.print()의 반복
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();
        for(int i = 0; i < n; i++){
            System.out.print(str);
        }
    }
}

// StringBuilder로 문자열 추가 후 출력
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);
        }
        System.out.println(sb);
    }
}

JavaScript

// repeat이용
const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

let input = [];

rl.on('line', function (line) {
    input = line.split(' ');
}).on('close', function () {
    str = input[0];
    n = Number(input[1]);
    console.log(str.repeat(n));
});

// for 이용
const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

let input = [];

rl.on('line', function (line) {
    input = line.split(' ');
}).on('close', function () {
    str = input[0];
    n = Number(input[1]);
    let answer = '';
    for(let i = 0; i < n; i++){
        answer += str;
    }
    console.log(answer);
});