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RSS订阅原创 草地排水
描述 在农夫约翰的农场上，每逢下雨，贝茜最喜欢的三叶草地就积聚了一潭水。这意味着草地被水淹没了，并且小草要继续生长还要花相当长一段时间。因此，农夫约翰修建了一套排水系统来使贝茜的草地免除被大水淹没的烦恼（不用担心，雨水会流向附近的一条小溪）。作为一名一流的技师，农夫约翰已经在每条排水沟的一端安上了控制器，这样他可以控制流入排水沟的水流量。 农夫约翰知道每一条排水沟每分钟可以流过的水
2013-04-05 12:48:03
560
原创 Jungle Roads
描述 The Head Elder of the tropical island of Lagrishan has a problem. A burst of foreign aid money was spent on extra roads between villages some years ago. But the jungle overtakes roads rele
2013-03-06 13:08:15
355
原创 POJ2243Knight Moves
描述 A friend of you is doing research on the Traveling Knight Problem (TKP) where you are to find the shortest closed tour of knight moves that visits each square of a given set of n squares on a
2013-03-05 21:20:52
409
原创 Air Raid
描述 Consider a town where all the streets are one-way and each street leads from one intersection to another. It is also known that starting from an intersection and walking through town's streets
2013-03-05 12:22:59
373
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