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DescriptionAs Harry Potter series is over, Harry has no job. Since he wants to make quick money, (he wants everything quick!) so he decided to rob ban... 阅读全文
posted @ 2015-08-19 21:22
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DescriptionTomorrow is contest day, Are you all ready?We have been training for 45 days, and all guys must be tired.But , you are so lucky comparing w... 阅读全文
posted @ 2015-08-19 17:16
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DescriptionGerald got a very curious hexagon for his birthday. The boy found out that all the angles of the hexagon are equal to. Then he measured the... 阅读全文
posted @ 2015-08-19 15:51
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DescriptionSometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party whe... 阅读全文
posted @ 2015-08-19 15:14
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Description一组研究人员正在设计一项实验，以测试猴子的智商。他们将挂香蕉在建筑物的屋顶，同时，提供一些砖块给这些猴子。如果猴子足够聪明，它应当能够通过合理的放置一些砖块建立一个塔，并爬上去吃他们最喜欢的香蕉。研究人员有n种类型的砖块，每种类型的砖块都有无限个。第i块砖块的长宽高分别用xi，... 阅读全文
posted @ 2015-08-19 10:44
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