/* This is a simple program to caluclate the facotrial
*
*/
#include <iostream>
using namespace std;
int main()
{
int n;
int fact = 1;
cout<<"Enter a number & I'll give you its factorial: ";
cin>>n;
/* We need this condition to make sure the 0! is equal to 1
*
*/
if(n==0)
cout<<"The factorial is 1\n";
/* Inside the else statement consists a for loop to calculate
the factorial
*
*/
else
{
for(int i = 1; i <= n; i++)
{
fact = fact *
i;
}
cout<<"The factorial is "
<< fact << "\n";
}
/* System Pause used to pause the output window
The latest version complier do not require it
*
*/
system("PAUSE");
return 0;
}
