[ BOJ/C# ] 2675 문자열 반복

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

2675번: 문자열 반복

using System;
using System.Text;

namespace _2675
{
    class Program
    {
        static void Main()
        {
            StreamReader sr = new StreamReader(Console.OpenStandardInput());
            StreamWriter sw = new StreamWriter(Console.OpenStandardOutput());
            StringBuilder sb = new StringBuilder();

            //테케 수
            int t = int.Parse(sr.ReadLine());

            for(int i=0; i < t; i++)
            {
                string[] strs = sr.ReadLine().Split(' ');
                int r = int.Parse(strs[0]);
                string s = strs[1];
                for(int j=0; j < s.Length; j++)
                {
                    for(int k=0;k<r;k++) sb.Append(s[j]);
                }
                sb.Append('\n');
            }
            sw.WriteLine(sb);

            sr.Close();
            sw.Flush();
            sw.Close();
        }
    }
}