mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-12-28 06:00:17 +00:00
40 lines
767 B
Python
40 lines
767 B
Python
|
"""
|
|||
|
n! means n × (n − 1) × ... × 3 × 2 × 1
|
|||
|
|
|||
|
For example, 10! = 10 × 9 × ... × 3 × 2 × 1 = 3628800,
|
|||
|
and the sum of the digits in the number 10! is 3 + 6 + 2 + 8 + 8 + 0 + 0 = 27.
|
|||
|
|
|||
|
Find the sum of the digits in the number 100!
|
|||
|
"""
|
|||
|
from math import factorial
|
|||
|
|
|||
|
|
|||
|
def solution(n):
|
|||
|
"""Returns the sum of the digits in the number 100!
|
|||
|
>>> solution(1000)
|
|||
|
10539
|
|||
|
>>> solution(200)
|
|||
|
1404
|
|||
|
>>> solution(100)
|
|||
|
648
|
|||
|
>>> solution(50)
|
|||
|
216
|
|||
|
>>> solution(10)
|
|||
|
27
|
|||
|
>>> solution(5)
|
|||
|
3
|
|||
|
>>> solution(3)
|
|||
|
6
|
|||
|
>>> solution(2)
|
|||
|
2
|
|||
|
>>> solution(1)
|
|||
|
1
|
|||
|
>>> solution(0)
|
|||
|
1
|
|||
|
"""
|
|||
|
return sum(map(int, str(factorial(n))))
|
|||
|
|
|||
|
|
|||
|
if __name__ == "__main__":
|
|||
|
print(solution(int(input("Enter the Number: ").strip())))
|