Swap Two integers variable values without using the third variable.

Question

Aryan Kumar · Answer

Sure, here is a C# code that swaps two integers without using a third variable:
C#
using System;
public class SwapExample
{
    public static void Main(string[] args)
    {
        int x = 10;
        int y = 20;
        // Swap x and y without using a third variable.
        x = x + y;
        y = x - y;
        x = x - y;
        Console.WriteLine("x = {0}, y = {1}", x, y);
    }
}
This code works by adding x and y together, then storing the result in x. Then, it subtracts y from the result, and stores the result in y. Finally, it subtracts x from the result, and stores the result in x. This effectively swaps the values of x and y without using a third variable.
Here is an explanation of how the code works:
The using System; statement imports the System namespace, which contains the Console class.The public class SwapExample statement defines a class called SwapExample.The public static void Main(string[] args) statement defines a method called Main that is the entry point for the program.The int x = 10; statement declares an integer variable called x and initializes it to 10.The int y = 20; statement declares an integer variable called y and initializes it to 20.The x = x + y; statement adds y to x and stores the result in x.The y = x - y; statement subtracts y from x and stores the result in y.The x = x - y; statement subtracts x from y and stores the result in x.The Console.WriteLine("x = {0}, y = {1}", x, y); statement prints the values of x and y to the console.The }``` statement closes theMain` method.The }``` statement closes theSwapExample` class.

Ravi Vishwakarma · Answer

There is a simple C# program to swap to an integer without using a third variable.
and 
using System;
namespace HelloWorld
{
  class Program
  {
    static void Main(string[] args)
    {
      Program.SwapInteger();  
      Console.ReadLine();      
    }
      public static void SwapInteger()  
      {  
          int a = 10;  
          int b = 5;  
          Console.WriteLine('a = {0}, b = {1}', a, b);  
          a = a and#43; b; // Now a = 15   
          b = a - b; // Now b = 15-5=10 
          a = a - b; // Now a = 15-10=5
          Console.WriteLine('a = {0}, b = {1}', a, b);    
      }   
  }
}
Output: a = 10, b = 5
		a = 5, b = 10

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Swap Two integers variable values without using the third variable.

Ahnkar Misra

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