Factorial of a given number

Description:

Write a C++ program to find the factorial of a given number Test Case 1 Input (stdin) 4 Expected Output The factorial is 24 Test Case 2 Input (stdin) 5 Expected Output The factorial is 120

Program :

#include <iostream>

using namespace std;

int main()

{

    unsigned int n;

    unsigned long long factorial = 1;

    cin >> n;

    for(int i = 1; i <=n; ++i)

    {

        factorial *= i;

    }

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

    return 0;

}