swapping of two numbers in c without temporary variable code example

Example 1: swap 2 integers without using temporary variable

using System;

class MainClass {
  public static void Main (string[] args) {
    int num1 = int.Parse(Console.ReadLine());
    int num2 = int.Parse(Console.ReadLine());
      num1 = num1 + num2; 
      num2 = num1 - num2; 
      num1 = num1 - num2; 
      Console.WriteLine("After swapping: num1 = "+ num1 + ", num2 = " + num2); 
    Console.ReadLine();
  }
}

Example 2: c program for swapping of two numbers using temporary variable

#include <stdio.h>
int main()
{
    int a, b, temp;
    printf("enter the values of a and b: \n");
    scanf("%d%d", &a, &b );
    printf("current values are:\n a=%d\n b=%d\n", a, b);
    temp=a;
    a=b;
    b=temp;
    printf("After swapping:\n a=%d\n b=%d\n", a, b);
}