Write a program in C to swap two numbers without using any third variable.

 /*This program is to swap two inputed nums' without using any third tempurary variable*/

#include <stdio.h>

#include <conio.h>

int main()

{

int num1, num2;

printf("Enter two numbers:\n");

scanf("%d %d", &num1, &num2);

num1 = num1+num2;

num2 = num1-num2;

num1 = num1-num2;

printf("Now the first number is: %d\n", num1);

printf("Now the second number is: %d", num2);

getch();

return 0;

}