Swapping Numbers without 3rd Variable

This is a simple  Program for Swapping of Variable without 3rd Variable. This is a part of Mumbai University MCA Colleges Cpp. 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;

Hope this Program is useful to you in some sense or other. Keep on following this blog for more Mumbai University MCA College Programs. Happy Programming and Studying.

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