mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-24 13:31:07 +00:00
33 lines
667 B
Python
33 lines
667 B
Python
"""
|
|
Problem Statement:
|
|
If we list all the natural numbers below 10 that are multiples of 3 or 5,
|
|
we get 3,5,6 and 9. The sum of these multiples is 23.
|
|
Find the sum of all the multiples of 3 or 5 below N.
|
|
"""
|
|
def solution(n):
|
|
"""Returns the sum of all the multiples of 3 or 5 below n.
|
|
|
|
>>> solution(3)
|
|
0
|
|
>>> solution(4)
|
|
3
|
|
>>> solution(10)
|
|
23
|
|
>>> solution(600)
|
|
83700
|
|
"""
|
|
|
|
a = 3
|
|
result = 0
|
|
while a < n:
|
|
if a % 3 == 0 or a % 5 == 0:
|
|
result += a
|
|
elif a % 15 == 0:
|
|
result -= a
|
|
a += 1
|
|
return result
|
|
|
|
|
|
if __name__ == "__main__":
|
|
print(solution(int(input().strip())))
|