/* C++ program for calculating factorial. */
#include <iostream>
#include "conio.h"
using namespace std;
int factorial(int num);
void main()
{
int num;
cout<<"enter any integer value";
cin>>num;
cout<<num<<" factorial is "<<factorial(num)<<endl;
_getch();
}
int factorial(int num)
{
int fact=1;
if (num==0)
return 1;
else
{
fact=num*factorial(num-1);
return(fact);
}
