9. C++ program to swap two numbers using macros

#include<iostream>
#define SWAP(a,b) {int temp; temp=a; a=b; b=temp;}

using namespace std;
int main()
{
int x,y;
cout<<“Enter two numbers :: “;
cin>>x>>y;

SWAP(x,y);
cout<<“x= “<<x<<” y= “<<y;

return 0;
}

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