2014年5月13日
Add Two Numbers
摘要： You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ... 阅读全文
posted @ 2014-05-13 11:06 Awy 阅读(226) 评论(0) 推荐(0)
Recover Binary Search Tree
摘要： Two elements of a binary search tree (BST) are swapped by mistake.Recover the tree without changing its structure.Note:A solution using O(n) space is ... 阅读全文
posted @ 2014-05-13 09:53 Awy 阅读(225) 评论(0) 推荐(0)