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Equal Cut 题目描述 Snuke has an integer sequence A of length N. He will make three cuts in A and divide it into four (non empty) contiguous subsequences B 阅读全文
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徐州网络赛2018 网络赛的题比赛应该不会出了吧 嗯...... 【记忆化搜索求PN态】 BE, GE or NE + 题意:三个操作,增加,减少,加负号。一个人要让该数字 =r,一个人要让该数字小于等于l。 + 很明显对于先手来说肯定是让分数最高最优,对于后手来说肯定是让分数最低最优。我们考虑所有 阅读全文
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[tire+最短路]Bless You Autocorrect! Typing on phones can be tedious. It is easy to make typing mistakes, which is why most phones come with an autocorrec 阅读全文
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【网络流】One Way Roads 题目描述 In the country of Via, the cities are connected by roads that can be used in both directions. However, this has been the cause 阅读全文
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【二进制枚举+LCS】Card Hand Sorting 题目描述 When dealt cards in the card game Plump it is a good idea to start by sorting the cards in hand by suit and rank. Th 阅读全文