







This is a simple Program for Swapping of Variable without 3rd Variable.

It is also usually asked in Interviews.

























Swapping of Variable without 3rd Variable





#include <stdio.h>

#include <iostream.h>

int main()

{

int a=11;

int b=20;

b=(a+b); // a = 11 b=31

a=(b-a); // a = 20 b=31

b=(b-a); // a = 20 b=11

printf("%d %d",a,b);

return 0;

}



