Program to swap two numbers using class template.

#include<iostream.h>

#include<conio.h>

template <class T>

void swap(T x,T y)

{

T temp=x;

x=y;

y=temp;

}

void fun(int m,int n,float a,float b)

{

cout<<"Value of m & n before swap is: "<<m<<"\t"<<n;

swap(m,n);

cout<<"\n Value of m & n agter swap is: "<<m"\t"<<n;

cout<<"\n Value of a & b before swap is: "<<a<<"\t"<<b;

swap(a,b);

cout<<"\n Value of a & b after swap: "<<a<<"\t"<<b;

}

int main()

{

clrscr();

fun(100,200,12.4,13.4);

return 0;

}

 Output

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