Program to swap two integers using pointers (Call by reference)

 Program to swap two integers using pointers (Call by reference)

#include<stdio.h>

void swap(int *m, int *n)

{

int p;

p=*m;

*m=*n;

*n=p;

}

void main()

{

int a, b;

printf(“Enter two integers\n”);

scanf(“%d%d”,&a, &b);

swap(&a, &b);

printf(“a=%d\tb=%d”, a, b);

}