Factorial!

You have been given a positive integer N. You need to find and print the Factorial of this number. The Factorial of a positive integer N refers to the product of all numbers in the range from 1 to N.

Example:

Input:  n = 5
Output: 120

Approach

C++

#include <bits/stdc++.h>
using namespace std;

int fact(int n)
{
    if (n <= 1)
        return n;
    return n * fact(n - 1);
}
int main()
{
    int n = 5;
    cout << fact(n) << "\n";

    return 0;
}