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Leetcode: Count Primes
Count the number of prime numbers less than a non-negative number, n.Algorithm: The sieve of Eratosthenes,Referring to Summary: Primes0 and 1 are not ...
分类:其他好文   时间:2015-12-15 06:27:06    阅读次数:185
vbScript 备忘
closeCDRom.vbsSet Obj=CreateObject("WMPlayer.OCX.7")Set CD=Obj.CDROMCollectionIf CD.Count>=1 thenFor i=0 to CD.Count-1 CD.Item(i).ejectNextFor i=0 ...
分类:其他好文   时间:2015-12-14 21:14:52    阅读次数:223
list 交换位置扩展
public static List Swap(this List list, int index1,int index2) { if(index1=list.Count) { throw new Except...
分类:其他好文   时间:2015-12-14 19:04:06    阅读次数:128
115.Distinct Subsequences
Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from the orig...
分类:其他好文   时间:2015-12-14 18:20:25    阅读次数:131
Mac 下纯lua(二)
Lua库基本函数assert(v,[,message])当v时false时,返回messageassert(money >0,"error -1001");collectgarbage([opt,[arg]]);//垃圾回收相关collet stop restart count step setpa...
分类:系统相关   时间:2015-12-14 16:24:41    阅读次数:174
一个内容丰富的存储过程
ALTER proc [dbo].[pro_inventory]--单据过账 @orderno nvarchar(50),@inout int--加还是减库存 用1,-1标示asdeclare @errorcount intselect @errorcount=COUNT(1) from yw_or...
分类:其他好文   时间:2015-12-14 16:23:59    阅读次数:159
oracle查看对象信息
1.查看某用户下所有对象的信息:SELECT owner, object_type, status, COUNT(*) count# FROM all_objects where owner='xxx'GROUP BY owner, object_type, statusorder by 2; Vi...
分类:数据库   时间:2015-12-14 16:20:44    阅读次数:273
TSql Over 窗口函数(滑动聚合--累积聚合)
Over 窗口函数,能够在Select 子句中,对查询的结果集进行“滑动-聚合”运算;如果使用count,那么基于滑动窗口的聚合语义同 base+1 累加;如果使用sum,那么基于滑动窗口的聚合语义等同于数据累加。Over()子句的运算顺序在Select 子句之后,在Order By子句之前。1,创...
分类:数据库   时间:2015-12-14 14:35:14    阅读次数:358
[leetcode 200] 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:2015-12-13 14:02:57    阅读次数:169
【转】JVM统计监控工具-jstat
原文链接 http://www.javaranger.com/archives/575jstat概要帮助jstat[generalOption|outputOptionsvmid[interval[s|ms][count]]]generalOption通用命令行选项(-help,-options,o...
分类:Web程序   时间:2015-12-13 07:15:24    阅读次数:232
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