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why is agreement hard in a distributed system?
same question as:why is PAXOS necessary?1, what if >1 nodes become leaders simultaneously?that's why we need phase#1 (prepare) to select a leader.2, w...
分类:其他好文   时间:2014-11-16 08:15:30    阅读次数:210
剑指offer面试题笔记11~20题(Java实现)
一、面试题1:复制运算符函数(P24) 题目:如下为类型CMString的声明,请为该类型添加赋值运算符函数。 class CMyString { public: CMyString(Char* pData = NULL); CMyString(const CMyString& str)...
分类:编程语言   时间:2014-11-15 23:14:37    阅读次数:312
银行家算法
1 #include 2 #include 3 #include 4 using namespace std; 5 int work,progress,available[100],mmax[100][100],allocation[100][100],need[100][100]; ...
分类:编程语言   时间:2014-11-15 17:02:36    阅读次数:321
POJ-1005 I Think I Need a Houseboat
【问题描述】 Fred想在一块地上买房子,但那块地每年都会收缩50m2,给定一个房子坐标,输出几年后房子会被侵蚀入海中。 【思路分析】 该题也算是简单题,只要读懂题目就没什么问题了。 唯一要注意的地方是每年会收缩50m2,如果在上一年的基础上算收缩50m2会呈一个半环形,比较麻烦。索性直接计算出从开...
分类:其他好文   时间:2014-11-15 16:53:03    阅读次数:224
一道难题
描述Today, I want to take a few minutes to speak with you-directly and clearly-about Ebola: what we're doing about it, and what you need to know. Becaus...
分类:其他好文   时间:2014-11-14 22:26:11    阅读次数:221
POJ 3468 A Simple Problem with Integers(线段树区间求和)
Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of operation is to add some given number to each number in a given interval. The other is ...
分类:其他好文   时间:2014-11-14 01:41:58    阅读次数:245
AFN检测网络情况
问: I'm a bit lost on AFNetorking's Reachability and haven't found a lot of good information out there. I have an app that logs into a web API. Each VC connects to the API in some way so each VC need...
分类:其他好文   时间:2014-11-14 00:19:13    阅读次数:393
Enums and Lookup Tables with EF Code First
http://coding.abel.nu/2013/11/enums-and-lookup-tables-with-ef-code-first/With EntityFramework’s support for enums, there is no longer any need to incl...
分类:编程语言   时间:2014-11-13 16:18:38    阅读次数:228
AFHTTPRequestOperationManager网络请求的时候添加一个菊花
问: Can you help me to understand, how to use UIActivityIndicatorView+AFNetworking or UIProgressView+AFNetworking. Do I need to create one more UIViewController and if yes, where do I need to impleme...
分类:Web程序   时间:2014-11-12 23:01:38    阅读次数:266
Building C Projects
C is a compiled language, and as such, C programs need to be converted to executables in order to use them. ?Typically, programmers do this with some sort of build system, rather than running the ...
分类:其他好文   时间:2014-11-12 15:10:05    阅读次数:299
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