help With Factorial Calculator

[Learath2]

#include <cstdlib>
#include <iostream>

using namespace std;

long int factorial(long int num)
{
    long int i = num;
    long int add = i;
    while(i != 1)
    {
        i--;
        add *= i;
    }
    return add;
}

int main()
{
    long int uur;
    cout << "Please Enter A Positive Integer:";
    cin >> uur;
    while(uur < 0)
    {
        cout << "Dont Enter A Negative Number";
        cout << "Please Enter A Positive Integer:";
        cin >> uur;
    }
    if(uur == 0 || uur == 1)
    {
         cout << "1";
    }
    else
    {
           cout << factorial(uur);
    }

}

First I made This Code With integer but integer doesnt give me more then 32 factorial. With Long Double I Get 32 Factorial A weird number. Help Please.

EDIT: Fixed It With Long Int Still No luck

[jonsca]

What is the actual assignment? Those are very large numbers to be using fundamental types. Perhaps your instructor wants you to implement a "BigInt" type class using arrays.