PROGRAM TO SWAP TWO NUMBERS. WITHOUT USING THIRD VARIABLE

WITHOUT USING THIRD VARIABLE


#include<stdio.h>
main()
{
int a,b,temp;
printf("Enter first number: ");
scanf("%d",&a);
printf("\nEnter second number: ");
scanf("%d",&b);
a=a+b;
b=a-b;
a=a-b;
printf("After swapping value of first and second is %d  %d",a,b);

}

OUTPUT:

Enter first number:  15

Enter second number:  90

After swapping value of first and second is 90   15