#!/usr/bin/python3
# -*- coding: utf-8 -*-
"""
Factorial.

For example, factioral(5) is:
5! = 5 * 4 * 3 * 2 * 1
"""

import math

print(math.factorial(5))


# %% Recursive
def factorial_rec(n: int) -> int:
    """
    Computes n! for positive n integers
    """
    if n == 0:
        return 1
    else:
        return n * factorial_rec(n - 1)


for n in range(1, 11):
    val = factorial_rec(n)
    print(n, " factorial is ", val)