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A group of N people wishes to go across a river with only one boat, which can at most carry two persons. Therefore some sort of shuttle arrangement mu 阅读全文
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杂货店出售一种由N（3 include include include include include define sf scanf define pf printf define cl clear() define pb push_back define mm(a,b) memset((a),( 阅读全文
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We have received an order from Pizoor Communications Inc. for a special communication system. The system consists of several devices. For each device, 阅读全文
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A supermarket has a set Prod of products on sale. It earns a profit px for each product x∈Prod sold by a deadline dx that is measured as an integral n 阅读全文
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My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I have a number N of them, of various tastes and of various sizes. F 阅读全文
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Assume the coasting is an infinite straight line. Land is in one side of coasting, sea in the other. Each small island is a point locating in the sea 阅读全文
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Suppose there are M people, including you, playing a special card game. At the beginning, each player receives N cards. The pip of a card is a positiv 阅读全文
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The cows have purchased a yogurt factory that makes world famous Yucky Yogurt. Over the next N (1 include include include include include define sf sc 阅读全文