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Description Due to recent rains, water has pooled in various places in Farmer John's field, which is represented by a rectangle of N x M (1 <= N <= 10 阅读全文
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Description Pass a year learning in Hangzhou, yifenfei arrival hometown Ningbo at finally. Leave Ningbo one year, yifenfei have many people to meet. E 阅读全文
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Description Bessie hears that an extraordinary meteor shower is coming; reports say that these meteors will crash into earth and destroy anything they 阅读全文
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图的深搜与广搜 一、介绍： BFS：这是一种基于队列这种数据结构的搜索方式，它的特点是由每一个状态可以扩展出许多状态，然后再以此扩展，直到找到目标状态或者队列中头尾指针相遇，即队列中所有状态都已处理完毕。 DFS：基于递归的搜索方式，它的特点是由一个状态拓展一个状态，然后不停拓展，直到找到目标或者无 阅读全文