今天第一次看到欧拉计划,感觉很兴奋,决定挑战一下。 什么是欧拉计划? 欧拉计划是一系列挑战数学、计算机编程的问题。 第一题: 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. 示例:
def divid(x):
return x %
3 ==
0 or x %
5 ==
0
sum =
0
for num
in filter(divid, range(
1,
1000)):
sum += num
print(sum)
233168
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