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SPOJ SUBSUMS - Subset Sums
题目链接：http://www.spoj.com/problems/SUBSUMS/en/SUBSUMS - Subset Sums#binary-search #bitmasksGiven a sequence of N (1 ≤ N ≤ 34) numbers S1, ..., SN (-20,000,000 ≤ Si ≤ 20,000,00原创 2017-04-13 15:27:41 · 419 阅读 · 0 评论 -
SPOJ BALLSUM - Ball sum（规律）
题目链接：http://www.spoj.com/problems/BALLSUM/en/BALLSUM - Ball sum#simple-math #math #probability-theory #gcdYou have a bag filled with N balls.Each Ball has a distinct number fro原创 2017-04-18 11:21:20 · 724 阅读 · 1 评论 -
SPOJ EIGHTS - Triple Fat Ladies（规律）
题目链接：http://www.spoj.com/problems/EIGHTS/en/EIGHTS - Triple Fat Ladies#ad-hoc-1Pattern Matchers have been designed for various sorts of patterns. Mr. HKP likes to observe patte原创 2017-04-18 11:28:13 · 385 阅读 · 0 评论 -
SPOJ NDIV - n-divisors（区间因子个数为n的个数）
题目链接：http://www.spoj.com/problems/NDIV/en/NDIV - n-divisors#number-theory #sieveWe all know about prime numbers, prime number is a natural number greater than 1 that has no pos原创 2017-04-18 11:35:06 · 758 阅读 · 0 评论