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问题描述Tina Town 是一个善良友好的地方,这里的每一个人都互相关心。Tina有一个球,它的名字叫zball。zball很神奇,它会每天变大。在第一天的时候,它会变大11倍。在第二天的时候,它会变大22倍。在第nn天的时候,它会变大nn倍。zball原来的体积是11。Tina想知道,zball... 阅读全文
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DescriptionYou are trapped in a 3D dungeon and need to find the quickest way out! The dungeon is composed of unit cubes which may or may not be filled... 阅读全文
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Problem DescriptionSoda has a bipartite graph withnvertices andmundirected edges. Now he wants to make the graph become a complete bipartite graph wit... 阅读全文
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DescriptionWe give the following inductive definition of a “regular brackets” sequence:the empty sequence is a regular brackets sequence,ifsis a regul... 阅读全文
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DescriptionThe multiplication puzzle is played with a row of cards, each containing a single positive integer. During the move player takes one card o... 阅读全文