[BOJ][C++] 백준 2675 문자열 반복

#include <iostream>
#include<string>
using namespace std;

int main()
{
	int T;
	cin >> T;

	int R;
	string S;
	for (int i = 0; i < T; i++) {
		cin >> R;
		cin >> S;
		for (int j = 0; j < S.length(); j++) {
			for (int k = 0; k < R; k++) {
				cout << S[j];
			}
		}
		cout << "\n";
	}
}