C program to swap the two values, C/C++ Programming

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Program is to swap the two values which are enter by user:

Program is to swap the two values which are enter by user through the function with values changed using pointers

void swap(int *p,int *q);

void main()

{

clrscr();

int a,b;

cout<<" enter the number ";

cin>>a;

cout<<" enter the number ";

cin>>b;

swap(&a,&b);

cout<<" the numbers after the value being changed "<<"\n"<

}

void swap(int *p,int *q)

{

int r;

r=*p;

*p=*q;

*q=r;

}

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what is c++ ?

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