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Unknown TreasureProblem DescriptionOn the way to the next secret treasure hiding place, the mathematician discovered a cave unknow... 阅读全文
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Prime QueryTime Limit:1 Second Memory Limit:196608 KBYou are given a simple task. Given a sequenceA[i]withNnumbers. You have to perform Q operations o... 阅读全文
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TravelProblem DescriptionJack likes to travel around the world, but he doesn’t like to wait. Now, he is traveling in the Undir... 阅读全文
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The Highest Mark问题描述2045年的SD省队选拔，赛制和三十年前已是完全不同。一场比赛的比赛时间有 tt 分钟，有 nn 道题目。第 ii 道题目的初始分值为 A_i(A_i \leq 10^{6})Ai(Ai≤106) 分，... 阅读全文
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Reorder the Books问题描述dxy家收藏了一套书，这套书叫《SDOI故事集》，《SDOI故事集》有n(n\leq 19)n(n≤19)本，每本书有一个编号，从11号到nn号。dxy把这些书按编号从小到大，从上往下摞成一摞。dxy对这套书极其重视... 阅读全文