Problem 250
250250
Find the number of non-empty subsets of {11, 22, 33,…, 250250250250}, the sum of whose elements is divisible by 250. Enter the rightmost 16 digits as your answer.
250250
在集合{11, 22, 33,…, 250250250250}的所有子集中，有些非空子集的元素和能够被250整除，求这样的子集的数目。输入这个数的后十六位作为你的答案。