2015年1月15日
[LeetCode] Convert Sorted List to Binary Search Tree DFS,深度搜索
摘要： Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.Hide TagsDepth-first SearchLinked List 这... 阅读全文
posted @ 2015-01-15 20:10 A_zhu 阅读(214) 评论(0) 推荐(0) 编辑
[LeetCode] Valid Number 确认是否为数值
摘要： Validate if a given string is numeric.Some examples:"0"=>true" 0.1 "=>true"abc"=>false"1 a"=>false"2e10"=>trueNote:It is intended for the problem stat... 阅读全文
posted @ 2015-01-15 17:16 A_zhu 阅读(293) 评论(0) 推荐(0) 编辑
[LeetCode] Letter Combinations of a Phone Number 回溯
摘要： Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephon... 阅读全文
posted @ 2015-01-15 16:10 A_zhu 阅读(175) 评论(0) 推荐(0) 编辑