09 2019 档案
摘要:P1972 [SDOI2009]HH的项链 题目背景 无 无 题目描述 HH 有一串由各种漂亮的贝壳组成的项链。HH 相信不同的贝壳会带来好运,所以每次散步完后,他都会随意取出一段贝壳,思考它们所表达的含义。HH 不断地收集新的贝壳,因此,他的项链变得越来越长。有一天,他突然提出了一个问题:某一段贝
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摘要:query Given a permutation pp of length nn, you are asked to answer mm queries, each query can be represented as a pair (l ,r )(l,r), you need to find
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摘要:XKC's basketball team XKC , the captain of the basketball team , is directing a train of nn team members. He makes all members stand in a row , and nu
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摘要:A.Laptop 链接:https://ac.nowcoder.com/acm/contest/16/A来源:牛客网 时间限制:C/C++ 1秒,其他语言2秒 空间限制:C/C++ 131072K,其他语言262144K 64bit IO Format: %lld 时间限制:C/C++ 1秒,其他语
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