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F. Features Track Morgana is learning computer vision, and he likes cats, too. One day he wants to find the cat movement from a cat video. To do this, 阅读全文
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Description Building and maintaining roads among communities in the far North is an expensive business. With this in mind, the roads are build such th 阅读全文
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Problem Description A school bought the first computer some time ago(so this computer's id is 1). During the recent years the school bought N-1 new co 阅读全文
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Problem Description There is going to be a party to celebrate the 80-th Anniversary of the Ural State University. The University has a hierarchical st 阅读全文
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Problem Description Claire and her little friend, ykwd, are travelling in Shevchenko's Park! The park is beautiful - but large, indeed. N feature spot 阅读全文
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Description After hearing about the epidemic of obesity in the USA, Farmer John wants his cows to get more exercise, so he has committed to create a b 阅读全文
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描述 上回说到,小Ho得到了一棵二叉树玩具,这个玩具是由小球和木棍连接起来的,而在拆拼它的过程中,小Ho发现他不仅仅可以拼凑成一棵二叉树!还可以拼凑成一棵多叉树——好吧,其实就是更为平常的树而已。 但是不管怎么说,小Ho喜爱的玩具又升级换代了,于是他更加爱不释手(其实说起来小球和木棍有什么好玩的是吧 阅读全文
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题解报告:hdu 2082 找单词(母函数) Problem Description 假设有x1个字母A, x2个字母B,..... x26个字母Z,同时假设字母A的价值为1,字母B的价值为2,..... 字母Z的价值为26。那么,对于给定的字母,可以找到多少价值<=50的单词呢?单词的价值就是组成 阅读全文
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描述: 有一个牧场,牧场上有很多个供水装置,现在牧场的主人想要用篱笆把这些供水装置圈起来,以防止不是自己的牲畜来喝水,各个水池都标有各自的坐标,现在要你写一个程序利用最短的篱笆将这些供水装置圈起来!(篱笆足够多,并且长度可变) 输入: 第一行输入的是N,代表用N组测试数据(1<=N<=10)第二行输 阅读全文
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题解报告:hdu 2036 改革春风吹满地 (求多边形的面积) Problem Description “ 改革春风吹满地,不会AC没关系;实在不行回老家,还有一亩三分地。谢谢!(乐队奏乐)”话说部分学生心态极好,每天就知道游戏,这次考试如此简单的题目,也是云里雾里,而且,还竟然来这么几句打油诗。好 阅读全文