摘要: 链接:https://www.nowcoder.com/acm/contest/139/J 来源:牛客网 题目描述 Given a sequence of integers a1, a2, ..., an and q pairs of integers (l1, r1), (l2, r2), ... 阅读全文
posted @ 2018-07-22 12:07 Nlifea 阅读(143) 评论(0) 推荐(0)