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1798: [Ahoi2009]Seq 维护序列seqTime Limit:30 SecMemory Limit:64 MBDescription老师交给小可可一个维护数列的任务，现在小可可希望你来帮他完成。 有长为N的数列，不妨设为a1,a2,…,aN 。有如下三种操作形式： (1)把数列中的一段... 阅读全文
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Problem 1: Ski Lessons [Brian Jacokes, 2002]Farmer John wants to take Bessie skiing in Colorado. Sadly, Bessieis not really a very good skier.Bessie h... 阅读全文
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Problem 1: Gifts [Kalki Seksaria and Brian Dean, 2012]Farmer John wants to give gifts to his N (1 2 #include 3 #include 4 #include 5 #include 6 ... 阅读全文