2016年10月14日
Graph Valid Tree
摘要： Given n nodes labeled from 0 to n - 1 and a list of undirected edges (each edge is a pair of nodes), write a function to check whether these edges mak 阅读全文
posted @ 2016-10-14 02:56 北叶青藤 阅读(263) 评论(0) 推荐(0) 编辑