Write an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each row are sorted from l...
分类：
其他好文 时间：
2014-09-07 10:58:14
阅读次数：
185
Given n, generate all structurally unique BST's (binary search trees) that store values 1...n.For example,Given n = 3, your program should return all ...
分类：
其他好文 时间：
2014-09-07 07:38:14
阅读次数：
315
Word Search
Given a 2D board and a word, find if the word exists in the grid.
The word can be constructed from letters of sequentially adjacent cell, where "adjacent" cells are those...
分类：
其他好文 时间：
2014-09-06 22:34:14
阅读次数：
261
整合两道差不多的题目放上来，其中第一题是第二题的基础。
1.
Given a binary tree, determine if it is height-balanced.
For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two...
分类：
其他好文 时间：
2014-09-06 21:21:03
阅读次数：
279
To clarify, I’m looking for a decent regular expression to validate URLs that were entered as user input with. I have no interest in parsing a list of...
分类：
其他好文 时间：
2014-09-06 02:12:32
阅读次数：
1186
首先首先要在本地安装好Ruby环境。然后再安装CocoaPods。以AFNetworking为例第一步：先查询一下cocospods是否能安装想要的第三方，命令为：podsearchAFNetworking（类名一定要正确）如果有的话可以继续下一步，没有的话就要自己手动下载安装第二步：利用cd命令，打开添加第三方..
分类：
其他好文 时间：
2014-09-05 18:28:12
阅读次数：
223
Search a 2D Matrix
Total Accepted: 18506 Total
Submissions: 59402My Submissions
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following pr...
分类：
其他好文 时间：
2014-09-05 18:21:38
阅读次数：
232
Problem Description:
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.
分析：很容易想到的一种解法是将链表中所有的元素保存到数组中，然后每次取中间值进行构造，时间复杂度为O(n)，空间复杂度为O(n)。具体...
分类：
其他好文 时间：
2014-09-05 18:14:11
阅读次数：
223
[2014-09-05?10:04:26,551][INFO?][node?????????????????????]?[Yukio]?started
[2014-09-05?10:05:49,076][DEBUG][action.search.type???????]?[Yukio]?[logstash-2014.08...
分类：
其他好文 时间：
2014-09-05 14:36:51
阅读次数：
398
Write an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each row are sorted from l...
分类：
其他好文 时间：
2014-09-05 12:37:51
阅读次数：
215
