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【leetcode】Spiral Matrix II
Spiral Matrix IIGiven an integern, generate a square matrix filled with elements from 1 ton2in spiral order.For example,Givenn=3,You should return the...
分类:其他好文   时间:2015-01-08 21:32:10    阅读次数:209
LeetCode: Subsets 解题报告
SubsetsGiven a set of distinct integers, S, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solution set mus...
分类:其他好文   时间:2015-01-08 21:27:08    阅读次数:361
【leetcode】Sort Colors(middle)☆
Given an array withnobjects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the order red, wh...
分类:其他好文   时间:2015-01-08 19:59:45    阅读次数:151
str_replace使用array替换
<?php//替换采集等通过url参数传值function admin_ff_url_repalce($xmlurl,$order='asc'){ if($order=='asc'){ return str_replace(array('|','@','#','||'),arra...
分类:其他好文   时间:2015-01-08 11:09:17    阅读次数:170
[LeetCode#108]Convert Sorted Array to Binary Search Tree
The problem:Given an array where elements are sorted in ascending order, convert it to a height balanced BST.My analysis:The recursion is the best way...
分类:其他好文   时间:2015-01-08 00:49:30    阅读次数:265
【leetcode】Spiral Matrix
Spiral MatrixGiven a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral order.For example,Given the following matrix:[...
分类:其他好文   时间:2015-01-08 00:45:10    阅读次数:245
Oracle rownum原理和使用
对于查询返回的每一行,使用rownum伪列返回一个数字,表示oracle从表中选择行或将加入行的顺序。选择的第一行rownum为1,第二行为2,以此类推。可以使用rownum来限制由查询返回的行数,如下例子:select * from test where rownum 如果一个order by子句和rownum在同一个查询,那么行会由order by子句中重新排序,看如下例子select row...
分类:数据库   时间:2015-01-07 22:09:22    阅读次数:276
LeetCode---Add Two Numbers
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a link...
分类:其他好文   时间:2015-01-07 20:54:50    阅读次数:140
分析函数
分析函数基本语法函数名称([参数]) VOER ( PARTITION BY 子句 字段,.... [ORDER BY 子句 字段,..[ASC][DESC][NULLS FIRST][NULLS LAST]] [WINDOWING 子句]);使用PARTITION B...
分类:其他好文   时间:2015-01-07 20:46:49    阅读次数:199
Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in E:\\PHP\\wamp\\www\\lsr\\lsr.php on line 42
类似于这样的错误:其实大多数的情况下,都是SQL语句书写错了,特别是这种情况:select * from order;应该写成:select * from `order`;(那不是单引号,而是tab上面那个按键)出现这样的错误,意思是,你的SQL中有和数据库中的关键字重复了,所以才要加上那个符号来区...
分类:数据库   时间:2015-01-07 18:37:30    阅读次数:163
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