摘要: Problem Description Give you a sequence of N(N≤100,000) integers : a1,...,an(0<ai≤1000,000,000). There are Q(Q≤100,000) queries. For each query l,r yo 阅读全文
posted @ 2016-07-20 14:10 茶飘香~ 阅读(410) 评论(0) 推荐(0) 编辑