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First solution in Clear category for Number With Exclamation by Alex_sashaemelyanov09
def factorial(n: int) -> int:
if n in (0, 1):
return 1
factorial_num = 1
for number in range(2, n + 1):
factorial_num = number * factorial_num
return factorial_num
print("Example:")
print(factorial(4))
# These "asserts" are used for self-checking
assert factorial(0) == 1
assert factorial(1) == 1
assert factorial(5) == 120
assert factorial(10) == 3628800
assert factorial(15) == 1307674368000
print("The mission is done! Click 'Check Solution' to earn rewards!")
Oct. 1, 2023