02 2015 档案

[LeetCode#74]Search a 2D Matrix
摘要：The problem:Write an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each row are s... 阅读全文
posted @ 2015-02-27 07:11 airforce 阅读(145) 评论(0) 推荐(0)
[LeetCode#29]Divide Two Integers
摘要：The problem:Divide two integers without using multiplication, division and mod operator.If it is overflow, return MAX_INT.My analysis:The idea behind ... 阅读全文
posted @ 2015-02-13 03:25 airforce 阅读(216) 评论(0) 推荐(0)
Lowest Common Ancestor in Binary Tree
摘要：The problem:Given node P and node Q in a binary tree T.Find out the lowest common ancestor of the two nodes.Analysis:The answer of this problem could ... 阅读全文
posted @ 2015-02-11 01:09 airforce 阅读(278) 评论(0) 推荐(0)
[LeetCode#169]Majority Element
摘要：The problem:Given an array of sizen, find the majority element. The majority element is the element that appears more than⌊ n/2 ⌋times.You may assume ... 阅读全文
posted @ 2015-02-04 01:56 airforce 阅读(213) 评论(0) 推荐(0)