factorial in C++

Write a program that will print the factorial of any number.

input : 5

Output : 5 x 4 x 3 x 2 x 1 = 120

PROGRAM:

#include <iostream.h>

#include <conio.h>

void main() {

clrscr();

long int fact=1;

int num;

cout<<"Enter the number to generate factorial: ";

cin>>num;

while(num>0) {

fact*=num;

num--;

}

cout<<"The factorial is "<<fact;

getch();

}//end of the program