Question

How to check if second string a rotated version of first string in C#

Answer 1

using System;

public class Program
{
	internal static bool isSecondStringRotatedOfFirstString(string str1, string str2) {
		if (str1.Length != str2.Length) {
			return false;
		}

		string concatenated = str1 + str1;

		return concatenated.IndexOf(str2, StringComparison.Ordinal) != -1;
	}


	public static void Main(string[] args)
	{
		string first = "abcdefg";
		string second = "cdefgab";

		Console.Write((isSecondStringRotatedOfFirstString(first, second) ? "yes" : "no"));
	}
}




/*
run:
 
yes
  
*/

 

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