Try using a StringBuilder instead of path +=

On Monday, April 8, 2019 at 12:33:11 PM UTC-5, Peter Chikov wrote:
> I have the solution below. It works on the two test cases but times out on 
> the hidden test set. Could you please advise on how I could have possibly 
> made it faster.
> 
> using System;
> using System.Collections.Generic;
> using System.IO;
> using System.Linq;
> using System.Text;
> using System.Threading.Tasks;
> 
> namespace Problem1
> {
>     class Program
>     {
>         static void Main(string[] args)
>         {
> 
>             string numCases = Console.ReadLine();
>             int n = Int32.Parse(numCases.Trim());
> 
>             for (int i = 0; i < n; i++)
>             {
> 
>                 int sizeMaze = Int32.Parse(Console.ReadLine());
>                 string pathEnemy = Console.ReadLine();
>                 string path = "";
>                 for (int j = 0; j < pathEnemy.Length; j++)
>                 {
>                     if (pathEnemy[j] == 'S') path += 'E';
>                     else path += 'S';
>                 }
> 
>                 Console.WriteLine("Case #" + (i + 1) + ": " + path);
>             }
>         }
>     }
> }

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