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LeetCode(27):Remove Element
Remove Element:Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be changed....
分类:其他好文   时间:2016-01-05 15:34:19    阅读次数:123
Posting JSON to Spring MVC Controller
Spring MVC can be setup to automatically bind incoming JSON string into a Java object. Firstly, ensure you have jackson-mapper-asl included on the cla...
分类:编程语言   时间:2016-01-05 10:56:00    阅读次数:177
Part 8 AngularJS filters
Filters in angular can do 3 different things1. Format data2. Sort data3. Filter dataFilters can be used with a binding expression or a directiveTo app...
分类:Web程序   时间:2016-01-05 06:58:55    阅读次数:131
mysql 一个较特殊的问题:You can't specify target table 'sys_user' for update in FROM clause
SELECT uin,account,password,create_user_uin_tree FROM sys_user结果:表中的create_user_uin_tree标识该条记录由谁创建。创建新用户时,根据当前登录用户的uin及新创建的用户uin,有如下SQL:select concat(...
分类:数据库   时间:2016-01-04 15:38:03    阅读次数:442
Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
在Centos系统输入mysql回车出现以下错误的解决方法:MYSQL错误:ERROR2002(HY000):Can‘tconnecttolocalMySQLserverthroughsocket‘/var/lib/mysql/mysql.sock‘(2)解决方法一:如果是以yum方法安装:直接servicemysqldstart启动后再输入mysql命令可进入mysql数据库
分类:数据库   时间:2016-01-04 00:07:27    阅读次数:162
Centos如何使用SSH远程连接主机
ssh有两种连接方式第一种:密码认证连接方式[root@admin~]#sshroot@192.168.1.25(服务端的ip回车提示如下)Theauthenticityofhost‘192.168.1.250(192.168.1.250)‘can‘tbeestablished.RSAkeyfingerprintis75:f9:55:3b:da:0d:38:b2:c6:1b:e9:18:96:97:8a:2e.Areyousureyouwanttoc..
分类:其他好文   时间:2016-01-03 00:48:57    阅读次数:204
*Paint House
There are a row ofnhouses, each house can be painted with one of the three colors: red, blue or green. The cost of painting each house with a certain ...
分类:其他好文   时间:2016-01-02 08:41:24    阅读次数:155
Android 源码编译记录
问题1:Can't locate Switch.pm in @INC (you may need to install the Switch module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.20.2.....
分类:移动开发   时间:2016-01-01 18:56:10    阅读次数:500
ERROR: Can't get master address from ZooKeeper; znode data == null
出现此问题可能是zookeeper不稳定造成的,采用的是虚拟机,经常挂起的状态,使用hbase的list命令出现下面错误,这个可能是hbase的稳定性造成的,解决办法有两种。这里使用第一种办法就解决了。ERROR: Can't get master address from ZooKeeper; z...
分类:其他好文   时间:2016-01-01 14:54:25    阅读次数:195
Leetcode: Minimum Height Trees
For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible roote...
分类:其他好文   时间:2016-01-01 07:21:47    阅读次数:176
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