2015年11月28日
236. Lowest Common Ancestor of a Binary Tree
摘要： 题目： Given a binary tree, find the lowest common ancestor (LCA) of two given nodes in the tree. According to the definition of LCA on Wikipedia: “The l 阅读全文
posted @ 2015-11-28 23:56 YRB 阅读(2521) 评论(0) 推荐(0) 编辑
235. Lowest Common Ancestor of a Binary Search Tree
摘要： 题目： Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST. According to the definition of LCA on Wikip 阅读全文
posted @ 2015-11-28 22:30 YRB 阅读(1909) 评论(2) 推荐(0) 编辑
234. Palindrome Linked List
摘要： 题目： Given a singly linked list, determine if it is a palindrome. Follow up:Could you do it in O(n) time and O(1) space? 链接： http://leetcode.com/proble 阅读全文
posted @ 2015-11-28 11:07 YRB 阅读(244) 评论(0) 推荐(0) 编辑
233. Number of Digit One
摘要： 题目：Given an integer n, count the total number of digit 1 appearing in all non-negative integers less than or equal to n.For example:Given n = 13,Retur... 阅读全文
posted @ 2015-11-28 10:40 YRB 阅读(661) 评论(0) 推荐(0) 编辑