2016年8月29日
Letter Combinations of a Phone Number
摘要： Given a digit string excluded 01, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on 阅读全文
posted @ 2016-08-29 09:57 amazingzoe 阅读(140) 评论(0) 推荐(0)
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 @ 2016-08-29 09:15 amazingzoe 阅读(159) 评论(0) 推荐(0)
Clone Graph
摘要： Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. How we serialize an undirected graph: Nodes are labele 阅读全文
posted @ 2016-08-29 07:38 amazingzoe 阅读(97) 评论(0) 推荐(0)