Python/project_euler/problem_01/sol7.py
Suad Djelili 8b572e6cfd added solution 7 for problem_01 (#1416)
* added solution 7 for problem_01

* added solution 5 for problem_02
2019-10-22 09:31:17 +02:00

33 lines
635 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
"""
result = 0
for i in range(n):
if i % 3 == 0:
result += i
elif i % 5 == 0:
result += i
return result
if __name__ == "__main__":
print(solution(int(input().strip())))