Write a program to add two numbers using functions accept, add, display using call by value and call by reference.

/* Write a program to add two numbers using functions accept, add, display using

call by value and call by reference.*/

#include <stdio.h>

void accept(int *,int *);

int add(int,int);

void display(int,int,int);

void main()

{

    int a,b,c;

    accept(&a,&b);

    c=add(a,b);

    display(a,b,c);

    getch();

}

void accept(int *x,int *y)

{

    printf("Enter the first number  : ");

    scanf("%d",x);

    printf("Enter the second number : ");

    scanf("%d",y);

}

int add(int x,int y)

{

    int z;

    z=x+y;

    return z;

}

void display(int x,int y,int z)

{

    printf("The sum of %d and %d is %d\n",x,y,z);

}