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Problem DescriptionFat brother and Maze are playing a kind of special (hentai) game on an N*M board (N rows, M columns). At the beginning, each grid o... 阅读全文
posted @ 2015-11-27 22:29
UniqueColor
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Problem DescriptionIn mathematics, and more specifically in graph theory, a tree is an undirected graph in which any two nodes are connected by exactl... 阅读全文
posted @ 2015-11-27 20:48
UniqueColor
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Problem DescriptionAlice and Bob are playing a game. There are two piles of cards. There are N cards in each pile, and each card has a score. They tak... 阅读全文
posted @ 2015-11-27 15:07
UniqueColor
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Problem DescriptionThe doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the maze began to shake, and... 阅读全文
posted @ 2015-11-27 14:14
UniqueColor
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