Write functions to add, multiply, subtract two numbers and call the functions from the main program using a function pointer.
CODING:
#include <stdio.h>
#include<conio.h>
int add(int x,int y)
{
 return x+y;
}

int mul(int x,int y)
{
 return x*y;
}

int sub(int x,int y)
{
 return x-y;
}

void main()
{

 int (*a)(int,int);
 int (*m)(int,int);
 int (*s)(int,int);
 int x,y,z;
 clrscr();

 a=add;
 m=mul;
 s=sub;


 x=a(5,3);
 y=m(5,3);
 z=s(5,3);


 printf("\nAdd\t\t: %d",x);
 printf("\nProduct\t\t: %d",y);
 printf("\nSubtract\t: %d",z);

 getch();
}