Question

How to swap adjacent characters of a string in C#

Answer 1

using System;

class Program
{
    private static string swap_adjacent_characters(string str) {
		int length = str.Length;
		char[] charArray = str.ToCharArray();

		if (length % 2 == 0) {
			for (int i = 0; i < length; i += 2) {
				char temp = charArray[i] ;
                charArray[i] = charArray[i + 1];
                charArray[i + 1] = temp;
			}
		}

		return new string(charArray);
	}
    
    static void Main() {
        string str = "ABCDEFGH";

		str = swap_adjacent_characters(str);

		Console.Write(str);
    }
}





/*
run:
 
BADCFEHG
  
*/

 

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