Swap_Integers

using System;

class Program
{
    static void Main()
    {
        int a = 5;
        int b = 9;

        // using temporary variable
        int temp = a;
        a = b;
        b = temp;
        Console.WriteLine("a = " + a);
        Console.WriteLine("b = " + b);

        Console.WriteLine();

        // using xor swap
        // negative numbers lose their sign
        int x = 5;
        int y = 9;
        x ^= y;
        y ^= x;
        x ^= y;
        Console.WriteLine("x = " + x);
        Console.WriteLine("y = " + y);
    }
}