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Farmer John has been informed of the location of a fugitive cow and wants to catch her immediately. He starts at a point N (0 ≤ N ≤ 100,000) on a numb 阅读全文
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Problem Description In China, foreign brand commodities are often much more expensive than abroad. The main reason is that we Chinese people tend to t 阅读全文
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Description You are assigned to design network connections between certain points in a wide area. You are given a set of points in the area, and a set 阅读全文
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There is a pile of n wooden sticks. The length and weight of each stick are known in advance. The sticks are to be processed by a woodworking machine 阅读全文
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Adapted from Wikipedia, the free encyclopedia The humidex is a measurement used by Canadian meteorologists to reflect the combined effect of heat and 阅读全文
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Problem Description Contest time again! How excited it is to see balloons floating around. But to tell you a secret, the judges' favorite time is gues 阅读全文
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Description Here is a simple game. In this game, there are several piles of matches and two players. The two player play in turn. In each turn, one ca 阅读全文
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Being an ACMer requires knowledge in many fields, because problems in this contest may use physics, biology, and even musicology as background. And no 阅读全文
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A stack is a data structure in which all insertions and deletions of entries are made at one end, called the "top" of the stack. The last entry which 阅读全文
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Mr. Chopsticks is interested in random phenomena, and he conducts an experiment to study randomness. In the experiment, he throws n balls into m boxes 阅读全文
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Problem Description Last year summer Max traveled to California for his vacation. He had a great time there: took many photos, visited famous universi 阅读全文
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Problem Description 喜欢西游记的同学肯定都知道悟空偷吃蟠桃的故事，你们一定都觉得这猴子太闹腾了，其实你们是有所不知：悟空是在研究一个数学问题！什么问题？他研究的问题是蟠桃一共有多少个！不过，到最后，他还是没能解决这个难题，呵呵^-^当时的情况是这样的：第一天悟空吃掉桃子总数一半多 阅读全文
