POJ1308(并查集)
摘要:
描述:A tree is a well-known data structure that is either empty (null, void, nothing) or is a set of one or more nodes connected by directed edges between nodes satisfying the following properties. There is exactly one node, called the root, to which no directed edges point. Every node except the root 阅读全文
posted @ 2012-05-11 19:39 L_S_X 阅读(602) 评论(0) 推荐(0)
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