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转 proc文件
/proc 是一个伪文件系统, 被用作内核数据结构的接口, 而不仅仅是解释说明/dev/kmem./proc 里的大多数文件都是只读的, 但也可以通过写一些文件来改变内核变量.下面对整个 /proc 目录作一个大略的介绍.[number]在 /proc 目录里, 每个正在运行的进程都有一个以该进程 ...
分类:其他好文   时间:2015-04-09 19:34:25    阅读次数:219
HDU_1005:Number Sequence
Problem DescriptionA number sequence is defined as follows:f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7.Given A, B, and n, you are t...
分类:其他好文   时间:2015-04-09 19:14:46    阅读次数:111
fd_set的具体实现过程
fd_set的实现详细原理 define FD_SETSIZE 1024 typedef unsigned long fd_mask; #define NBBY 8 /* number of bits in a byte */ #define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mas...
分类:其他好文   时间:2015-04-09 17:29:53    阅读次数:149
leetcode-200 Number of Islands
?? 问题描述: Given a 2dgrid map of '1's (land) and'0's (water),count the number of islands. An island is surrounded by water and is formed byconnecting adjacent lands horizontally or vertically...
分类:其他好文   时间:2015-04-09 17:27:50    阅读次数:160
LeetCode 53 Maximum Subarray**
题目:Maximum Subarray Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [?2,1,?3,4,?1,2,1,?5,4], the contiguo...
分类:其他好文   时间:2015-04-09 17:25:35    阅读次数:171
LeetCode Number of Islands
Given a 2d grid map of'1's (land) and'0's (water), count the number of islands. An island is surrounded by water and is formed by connecting adjacent ...
分类:其他好文   时间:2015-04-09 17:19:01    阅读次数:107
Number of Islands
Given a 2d grid map of'1's (land) and'0's (water), count the number of islands. An island is surrounded by water and is formed by connecting adjacent ...
分类:其他好文   时间:2015-04-09 17:11:32    阅读次数:115
SQL SERVER 2012/ 2014 分页,用 OFFSET,FETCH NEXT改写ROW_NUMBER的用法
写法:假装有个表Shop,其中有一列ShopName,取100000到100050条数据。ROW_NUMBER 的写法SELECT * FROM(SELECT ShopName , ROW_NUMBER() OVER(ORDER BY ShopName) as RFROM Shop) tWHERE....
分类:数据库   时间:2015-04-09 16:52:00    阅读次数:290
leetcode------Number of Islands
标题:Number of Islands通过率:22.8%难度:中等Given a 2d grid map of'1's (land) and'0's (water), count the number of islands. An island is surrounded by water and...
分类:其他好文   时间:2015-04-09 16:50:38    阅读次数:105
插入新列作为-序号列
ROW_NUMBER() OVER(ORDER BY f.biaodanid desc) as KeyIddeclare @yymm nvarchar(10) set @yymm ='2015-04-08' select f.biaodanid '订单号',d.dingdanshuliang '订单...
分类:其他好文   时间:2015-04-09 15:22:24    阅读次数:129
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