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[LeetCode] Longest Palindromic Substring
Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest pa...
分类:其他好文   时间:2015-01-25 11:03:14    阅读次数:129
VirtualBox 导入.vdi文件时报“uuid is exists”错误
解决办法: 1.要安装的.vdi文件所在目录:D:\developTools\vm\RedHatLinux1.vdi 2.找到VirtualBox的安装目录,这里是D:\Program Files\Oracle\VirtualBox>. 3.执行命令: VBoxManage intern...
分类:其他好文   时间:2015-01-24 08:56:37    阅读次数:187
shell IFS readLine.sh
processLine() { line="$@" echo $line } FILE="" if [ "$1" == "" ]; then FILE="/dev/stdin" else FILE="$1" if [ ! -f $FILE ]; then echo "$FILE : does not exists" exit 1 ...
分类:系统相关   时间:2015-01-23 20:07:29    阅读次数:242
[LeetCode]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 horizontally or vertically...
分类:其他好文   时间:2015-01-23 18:30:06    阅读次数:167
[redis]redis五种数据类型命令汇总整理
键key  命令 时间复杂度 命令描述 返回值 del key O(N) 在key存在时删除key 被移除key的数量 dump key O(N) 序列话给定key,并返回被序列化的值   exists key O(1)...
分类:其他好文   时间:2015-01-23 18:29:31    阅读次数:247
log4net配置
mysql数据库,创建这个表DROP TABLE IF EXISTS `t_errorlog`;CREATE TABLE `t_errorlog` ( `rowid` int(11) NOT NULL AUTO_INCREMENT, `log_date` datetime DEFAULT NULL ...
分类:Web程序   时间:2015-01-22 20:02:25    阅读次数:192
SQL逻辑判断(begin end)
use master--创建文件夹exec xp_cmdshell 'md d:project'exec xp_cmdshell 'dir d:'--判断数据库是否存在if exists(select * from sysdatabases where name='stuDB')--如果存在先删除d...
分类:数据库   时间:2015-01-22 17:54:10    阅读次数:261
[leetcode]Longest Palindromic Substring
Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique longes...
分类:其他好文   时间:2015-01-22 00:10:52    阅读次数:142
[Everyday Mathematics]20150225
设 $f:\bbR\to\bbR$ 二次可微, 适合 $f(0)=0$. 试证: $$\bex \exists\ \xi\in\sex{-\frac{\pi}{2},\frac{\pi}{2}},\st f''(\xi)=f(\xi)(1+2\tan^2\xi). \eex$$
分类:其他好文   时间:2015-01-21 22:14:11    阅读次数:181
sql编写注意
DROP TABLE IF EXISTS `imooc_pro`;CREATE TABLE `imooc_pro`(`id` int unsigned auto_increment key,`pName` varchar(50) not null,`pNum` int unsigned defaul...
分类:数据库   时间:2015-01-21 19:40:41    阅读次数:275
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