摘要： 题目链接：https://www.nowcoder.com/acm/contest/139/J 题目描述 Given a sequence of integers a1, a2, ..., an and q pairs of integers (l1, r1), (l2, r2), ..., (lq 阅读全文

摘要： 题目链接：http://poj.org/problem?id=2104 Description You are working for Macrohard company in data structures department. After failing your previous task 阅读全文