Problem 1 - Add all the natural numbers below one thousand that are multiples of 3 or 5.

링크

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.

python 1
sum = 0 for i in range(1, 1000): if i % 3 == 0 or i % 5 == 0: sum += i print sum


python 2
print sum([x for x in range(1000) if x % 3 == 0 or x % 5 == 0])