sol7.py

"""
Project Euler Problem 1: https://projecteuler.net/problem=1

Multiples of 3 and 5

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 1000.
"""


defsolution(n: int=1000) ->int:
"""
 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
foriinrange(n):
ifi%3==0ori%5==0:
result+=i
returnresult


if__name__=="__main__":
print(f"{solution() =}")