PROGRAM ON SWAPPING WITHOUT THIRD VARIABLE

#include<iostream.h>
#include<conio.h>
void main()
{
  int a,b;
  clrscr();
  cout<<"Enter the two no.:";
  cin>>a>>b;
  b=a+b;
  a=b-a;
  b=b-a;
  cout<<"Values after swapping is:"<<a<<" "<<b;
  getch();
}