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Description John is going on a fishing trip. He has h hours available (1 <= h <= 16), and there are n lakes in the area (2 <= n <= 25) all reachable a 阅读全文
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Description In modern day magic shows, passing through walls is very popular in which a magician performer passes through several walls in a predesign 阅读全文
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Description 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 阅读全文
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Description In Pearlania everybody is fond of pearls. One company, called The Royal Pearl, produces a lot of jewelry with pearls in it. The Royal Pear 阅读全文
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Description In the army, a platoon is composed by n soldiers. During the morning inspection, the soldiers are aligned in a straight line in front of t 阅读全文
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Description Few know that the cows have their own dictionary with W (1 ≤ W ≤ 600) words, each containing no more 25 of the characters 'a'..'z'. Their 阅读全文
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为什么要这么做 最近用递归比较多，虽然写起来舒服，但是 BUG 不好改，出错的一般都是 segment fault (core dump) 。这个错误很难定位是哪错了，但是我发现了一种很好的办法去解决这种问题。 由于每次发生段错误时，系统会产生 .core 文件记录发生的位置，所以我们在 gdb 调 阅读全文
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Description 急！灾区的食物依然短缺！ 为了挽救灾区同胞的生命，心系灾区同胞的你准备自己采购一些粮食支援灾区，现在假设你一共有资金n元，而市场有m种大米，每种大米都是袋装产品，其价格不等，并且只能整袋购买。 请问：你用有限的资金最多能采购多少公斤粮食呢？ 后记： 人生是一个充满了变数的生命 阅读全文
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Description Before ACM can do anything, a budget must be prepared and the necessary financial support obtained. The main income for this action comes 阅读全文
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Description Bessie has gone to the mall's jewelry store and spies a charm bracelet. Of course, she'd like to fill it with the best charms possible fro 阅读全文