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Operations
PKU 1860 Currency Exchange
Severalcurrencyexchangepointsareworkinginourcity.Letussupposethateachpointspecializesintwoparticularcurrenciesandperformsexchange
operations
onlywiththesecurrencies.Therecanbeseveralpoi
A_loud_name
·
2016-05-03 19:00
PKU1860
peter_zhu01
Top 20+ MySQL Best Practices
转载自:原文出处Database
operations
oftentendtobethemainbottleneckformostwebapplicationstoday.It'snotonlytheDBA's
nokiaisacat
·
2016-05-03 16:00
优化
mysql
性能
数据库
POJ 3414 Pots bfs
SpecialJudgeDescriptionYouaregiventwopots,havingthevolumeof A and B litersrespectively.Thefollowing
operations
canbeperfor
Houheshuai
·
2016-05-02 15:00
ACM
bfs
spark源码阅读笔记RDD(四)RDD中WithScope是什么?
所以把所有创建的RDD的方法都包裹起来,同时用RDD
OperationS
cope记录RDD的操作历史和关联,就能达成目标。
legotime
·
2016-05-01 07:00
源码
spark
RDD
WithScope
LeetCode[Stack]----Min Stack&Stack&Queue
1.ImplementQueueusingStacksImplementthefollowing
operations
ofaqueueusingstacks.push(x)--Pushelementxtothebackofqu
whiterbear
·
2016-04-30 15:00
LeetCode
python
栈
漫谈索引
目录目录数据库索引聚簇索引非聚簇索引数据库索引类型MySQL索引Oracle索引数据库索引Adatabaseindexisadatastructurethatimprovesthespeedofdataretrieval
operations
onadatabasetableatthecostofadditionalwritesandstoragespacetomaintaintheindexdata
zhaocong89
·
2016-04-29 13:00
C# 委托:把方法组合到一个数组中使用
usingSystem.Collections.Generic; usingSystem.Linq; usingSystem.Text; namespaceConsoleApplication1 { classMath
Operations
zww0815
·
2016-04-28 16:00
Best Coder Matrix(数学)
DescriptionThereisamatrix$M$thathas$n$rowsand$m$columns$(1\leqn\leq1000,1\leqm\leq1000)$.Thenweperform$q(1\leqq\leq100,000)$
operations
linyuxilu
·
2016-04-27 20:00
ViewDragerHelper(一)认识与简单实现
看看官方的解释其实就明白了/***ViewDragHelperisautilityclassforwritingcustomViewGroups.Itoffersanumber*ofuseful
operations
andstatetrackingforallowingausertodragandreposition
前世小书童
·
2016-04-27 18:23
linkList源码
Doubly-linkedlistimplementationofthe{@codeList}and{@codeDeque} *interfaces.Implementsalloptionallist
operations
oYiMiYangGuang123
·
2016-04-27 17:00
【故障】Hadoop Cluster启动后数据节点(DataNode)进程状态丢失
DataNode)进程状态丢失 在拥有三个节点的Hadoop集群环境中,其各节点的配置为:CPUIntel(R)Core(TM)
[email protected]
,内存RAM6GB,
OperationS
ystemRedhatLinux5x86
Askerain
·
2016-04-27 12:00
hadoop
故障
TroubleShouting
【故障】Hadoop Cluster启动后数据节点(DataNode)进程状态丢失
(DataNode)进程状态丢失在拥有三个节点的Hadoop集群环境中,其各节点的配置为:CPUIntel(R)Core(TM)
[email protected]
,内存RAM6GB,
OperationS
ystemRedhatLinux5x86
Askerain
·
2016-04-27 12:00
Hadoop
TroubleShouting
故障
【故障】Hadoop Cluster启动后数据节点(DataNode)进程状态丢失
(DataNode)进程状态丢失在拥有三个节点的Hadoop集群环境中,其各节点的配置为:CPUIntel(R)Core(TM)
[email protected]
,内存RAM6GB,
OperationS
ystemRedhatLinux5x86
Askerain
·
2016-04-27 12:00
Hadoop
TroubleShouting
故障
POJ 3468-A Simple Problem with Integers(区间更新线段树)
Accepted:27517CaseTimeLimit:2000MSDescriptionYouhaveNintegers,A1,A2,...,AN.Youneedtodealwithtwokindsof
operations
.On
MIKASA3
·
2016-04-27 10:00
simple
线段树
poj
problem
a
区间更新
3468
wit
mysql No
operations
allowed after connection closed.Connection was implicitly closed due to underly
转载原文地址:原文地址在说这个错误之前先说明我的项目是通过Hibernate来进行数据库操作的关于MySQL连接超时问题,估计很多人都遇到过:大致情形都是这样,开发测试时程序都是正常的,一到第二天就出先莫名错误,比如在我的项目中就是定时任务执行,每天凌晨一点执行一次,也就是24小时每隔24小时执行,远远超出了8小时如果你刚好在数据库超时的第一时间内看到日志记录的话那么,第一次超时发生的错误就是这样
Michael10001
·
2016-04-27 09:00
database
leetcode——230——Kth Smallest Element in a BST
writeafunctionkthSmallesttofindthekthsmallestelementinit.Note:Youmayassumekisalwaysvalid,1≤k≤BST'stotalelements.Followup:WhatiftheBSTismodified(insert/delete
operations
happyxuma1991
·
2016-04-26 21:00
WebService
datatypedefinitions........webservice使用的数据类型 definitionofthedatabeingcommunicated....webservice使用的消息 setof
operations
hcz804933522
·
2016-04-26 20:00
Web
service
POJ 【3414】 Pots
SpecialJudgeDescriptionYouaregiventwopots,havingthevolumeof A and B litersrespectively.Thefollowing
operations
canbeperfor
chen_ze_hua
·
2016-04-26 19:00
POJ-3468A Simple Problem with Integers,线段数区间更新查询,代码打了无数次还是会出错~~
CaseTimeLimit: 2000MSDescriptionYouhave N integers, A1, A2,..., AN.Youneedtodealwithtwokindsof
operations
.Onetypeofoperationistoa
NYIST_TC_LYQ
·
2016-04-25 21:00
线段树区间更新
学习大数据第四天:最小二乘法的Python实现
0,variable=None)[source]Aone-dimensionalpolynomialclass.Aconvenienceclass,usedtoencapsulate“natural”
operations
o
LthID
·
2016-04-25 12:08
poj3414 Pots BFS
SpecialJudgeDescriptionYouaregiventwopots,havingthevolumeof A and B litersrespectively.Thefollowing
operations
canbeperfor
EventQueue
·
2016-04-24 20:00
搜索
ACM
poj
bfs
布尔运算(Boolean
Operations
)
1.异或(^)printf("%d\n",-2^-3);//3;//提示:补码,也即计算机对负数的表示是通过补码的形式;//-2⇒10000010⇒11111101⇒11111110//-3⇒10000011⇒11111100⇒11111101//异或完了之后的结果就是32.与非(NAND)Y=!(A&B)真值表:00⇒101⇒110⇒111⇒03.或非(NOR)Y=!(A|B)注意与非和或非的真
Inside_Zhang
·
2016-04-24 17:23
math
布尔运算(Boolean
Operations
)
异或(^)printf("%d\n",-2^-3); //3; //提示:补码与非(NAND)Y=!(A&B)或非(NOR)Y=!(A|B)异或(XOR)Y=((A&!B)|(!A&B))也即异或逻辑,可以通过基本布尔运算的叠加而来;
lanchunhui
·
2016-04-24 17:00
HDU 5671 Matrix 水题
5671DescriptionThereisamatrixMthathasnrowsandmcolumns(1≤n≤1000,1≤m≤1000).Thenweperformq(1≤q≤100,000)
operations
qscqesze
·
2016-04-24 15:00
Netty in Action (十三) 第五章节 第二部分 ByteBuf字节层面的操作
5.3Byte-level
operations
ByteBuf除了提供基本对数据读写操作之外,它还提供了很多其他的方法,在接下来的这个小节中,我们将讨论这些方法中比较重要的来分析讲解一下5.3.1Randomaccessindexing
linuu
·
2016-04-24 11:00
netty
LeetCode 225. Implement Stack using Queues
mplementthefollowing
operations
ofastackusingqueues.push(x)--Pushelementxontostack.pop()--Removestheelementontopofthestack.top
github_34333284
·
2016-04-24 04:00
hdu 3242 List
Operations
题意:很水的模拟字符串,get到vector容器删除erase,指针会自动向后移并返回当前指针内容。其他,容易错的,考虑空串之间操作。#include usingnamespacestd; intmain() { stringa,b,op; strings=""; while(cin>>a){ if(a==".")break; cin>>op>>b; vectorv1,v2; for(inti=1
yexiaohhjk
·
2016-04-23 19:00
高斯消元
它的实质是通过初等行变化(Elementaryrow
operations
)
reverie_mjp
·
2016-04-23 19:00
数论
高斯消元
JDBC: CallableStatement
isusedtocallstoredproceduresinadatabase.Astoredprocedureislikeafunctionormethodinaclass,exceptitlivesinsidethedatabase.Somedatabaseheavy
operations
maybenefitperformance-wis
Oscarfff
·
2016-04-23 12:00
JDBC:
HDU 5671 Matrix
ProblemDescriptionThereisamatrix M thathas n rowsand m columns (1≤n≤1000,1≤m≤1000).Thenweperform q(1≤q≤100,000)
operations
jtjy568805874
·
2016-04-22 23:00
HDU
spring初始化Bean的方法---实现 InitializingBean接口
TransactionTemplate的源码如下: publicclassTransactionTemplateextendsDefaultTransactionDefinition implementsTransaction
Operations
zl834205311
·
2016-04-22 16:00
LeetCode 72. Edit Distance
(eachoperationiscountedas1step.)Youhavethefollowing3
operations
permittedonaword:a)Insertacharacterb)Deleteachar
zhyh1435589631
·
2016-04-22 15:00
LeetCode
Java arrayList工作原理详解及并发
arrayList概述1.JavaAPI中的官方描述:Resizable-arrayimplementationoftheListinterface.Implementsalloptionallist
operations
ZDASHUAI
·
2016-04-22 12:35
java
Spark-rdd的持久化
Spark最重要的一个功能是它可以通过各种操作(
operations
)持久化(或者缓存)一个集合到内存中。
youdianjinjin
·
2016-04-21 22:00
spark
ViewDragHelper 详解(一)
官方文档对这个类进行了简单的阐述:ViewDragHelperisautilityclassforwritingcustomViewGroups.Itoffersanumberofuseful
operations
andstatetrackingforallowi
我是吸血鬼
·
2016-04-21 21:12
A. Find Color
A.FindColortimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputNotsolongagoasaresultofcombat
operations
themainBerlandplaceofinterest—themagicclock—wasdamaged.The
u013077144
·
2016-04-21 19:00
POJ-3468 A Simple Problem with Integers(Splay实现)
Accepted:27382CaseTimeLimit:2000MSDescriptionYouhaveNintegers,A1,A2,...,AN.Youneedtodealwithtwokindsof
operations
.Onetypeofoperationistoaddsom
u014258433
·
2016-04-21 13:00
ACM
水题
伸展树
poj 3414 Pots(Bfs)
PotsDescriptionYouaregiventwopots,havingthevolumeofAandBlitersrespectively.Thefollowing
operations
canbeperformed
qq845579063
·
2016-04-20 18:00
C++
基础
bfs
广搜
路径存储
Java直接内存与非直接内存性能测试
Abytebufferiseitherdirectornon-direct.Givenadirectbytebuffer,theJavavirtualmachinewillmakeabestefforttoperformnativeI/O
operations
directlyuponit.Thatis
mingtianhaiyouwo
·
2016-04-19 20:00
TimesTen 应用层数据库缓存学习:14. 用户自定义(User Managed)缓存
WhenTimesTenmanages
operations
forusermanagedcachegroups,itconnectstotheOracledatabaseusingthecurrentuser
stevensxiao
·
2016-04-19 14:00
timesten
用户自定义
缓存组
cachegroup
230. Kth Smallest Element in a BST
kthsmallestelementinit.Note: Youmayassumekisalwaysvalid,1≤k≤BST'stotalelements.Followup:WhatiftheBSTismodified(insert/delete
operations
qq_27991659
·
2016-04-19 14:00
Microsoft
Operations
Management Suite 集成 SCOM
Microsoft
Operations
ManagementSuite是微软一套基于云端集日志分析、自动化、备份恢复、安全合规为一体的IT管理解决方案。
李�
·
2016-04-19 12:44
[LeetCode]LRU Cache
DesignandimplementadatastructureforLeastRecentlyUsed(LRU)cache.Itshouldsupportthefollowing
operations
:
CiaoLiang
·
2016-04-18 20:51
LeetCode
[LeetCode]LRU Cache
DesignandimplementadatastructureforLeastRecentlyUsed(LRU)cache.Itshouldsupportthefollowing
operations
:
CiaoLiang
·
2016-04-18 20:00
leetcode——72——Edit Distance
(eachoperationiscountedas1step.)Youhavethefollowing3
operations
permittedonaword:a)Insertacharacterb)Deleteacharacterc
happyxuma1991
·
2016-04-18 17:00
LeetCode
算法题
The C programing language chapter 7 : Input and Output
第七章somemostusefulfunctionsinstandardlibrary1.inputouput
operations
//1.standardinputandoutput //1.1getavalueofacharacterfromstdinstream
li740207611
·
2016-04-18 14:00
input
文件操作
output
标准输入输出
对输入输出流的操作
高级运维工程师面试题(更新中)
目录[-]高级运维工程师面试题(更新中)senior
operations
engineer高级运维工程师服务器硬件RAID磁盘阵列存储磁盘IOFibreChannelvsFCoE网络DNSLinux操作系统文件系统
netkiller.github.com
·
2016-04-18 13:00
工作
职场
运维
netkiller
试题
232. Implement Queue using Stacks
Implementthefollowing
operations
ofaqueueusingstacks.push(x)--Pushelementxtothebackofqueue.pop()--Removestheelementfrominfrontofqueue.peek
qq_27991659
·
2016-04-18 11:00
高级运维工程师面试题(更新中)
高级运维工程师面试题(更新中)原创 2016-04-18 景峯 Netkillersenior
operations
engineerMar3,2016高级运维工程师服务器硬件RAID磁盘阵列简述RAID?
neo-chen
·
2016-04-18 10:00
工作
面试
职场
运维
netkiller
简述DevOps和ChatOps
一、DevOpsDevOps(英文Development和
Operations
的组合)是一组过程、方法与系统的统称,用于促进开发(应用程序/软件工程)、技术运营和质量保障(QA)部门之间的沟通、协作与整合
jeremysong88
·
2016-04-18 00:00
敏捷
管理
团队
自动化
软件工程
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