2011年10月25日
nyoj129 树的判定 （并查集）
摘要： 树的判定时间限制：1000 ms | 内存限制：65535 KB难度：4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 阅读全文
posted @ 2011-10-25 20:46 mtry 阅读(616) 评论(0) 推荐(0)