E. Exposition Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/problemset/problem/6/E Description There are several days left before the fiftieth birthday of a famous Berland's writer Berlbury. In this connection the local library d…

                                                                    E. Exposition time limit per test 2 seconds memory limit per test 64 megabytes input standard input output standard output There are several days left before the fiftieth birthday of…

题目链接:https://vjudge.net/contest/202699#problem/A 题意 给一个n个元素的序列,从中挑出最长的子序列,要求子序列中元素差的最大值不超过k.问有几个最长子序列,子序列长度,以及这几个子序列的起始.终止位置.   n<=10e5,k<=10e6  题解   很显然是水题.. 方法1.rmq+二分查找 很暴力很暴力的做法.若用st表维护时间复杂度为(nlogn),线段树(nlognlogn) 即维护出每一段区间的最小最大值 每次查找时确定头结点,二分尾节…

https://codeforc.es/problemset/problem/6/E 既然可以多个log,那就直接map伺候.尺取之后要查询区间里面的最大值和最小值的差.众所周知尺取的时候要是不是有序序列,不可能方便地维护极值.(或者不用map以及平衡树的话,那就用线段树,每次update一个数量,然后RMQ最值,线段树(假如不是这个范围)还得先离散化,非常傻逼). #include<bits/stdc++.h> using namespace std; typedef long long l…

ECMAScript 6 Features 中文版 如词不达意,欢迎提 PR & issue 采用中英混排的方式进行译制,如不解请查看对应原文 本文档将与原作者的 文档 保持同步更新,欢迎关注 Contributors 翻译贡献者 Lenville CloudiDust Introduction Introduction 简介 ECMAScript 6, also known as ECMAScript 2015, is the latest version of the ECMAScript…

About Contact Subscribe   Back-propagation, an introduction Sanjeev Arora and Tengyu Ma  •  Dec 20, 2016  •  20 minute read Given the sheer number of backpropagation tutorials on the internet, is there really need for another? One of us (Sanjeev) rec…

Features From: Terry Brugger Date: 15 Sep 2007 Subject: KDD Cup '99 dataset (Network Intrusion) considered harmful Oftentimes in the scientific community, we become interested in new techniques or approaches based on characteristics of the technique…

barrier:栅栏的意思,当barrier bar(3),这三个线程会放到栅栏中,等第三个线程执行时一起唤醒,然后返回 barrier barrier类的接口定义如下: class barrier : private boost::noncopyable // Exposition only { public: // construct/copy/destruct barrier(size_t n); ~barrier(); // waiting bool wait(); }; barrier…

Hacker's guide to Neural Networks Hi there, I'm a CS PhD student at Stanford. I've worked on Deep Learning for a few years as part of my research and among several of my related pet projects is ConvNetJS - a Javascript library for training Neural Net…

摘要:在NeHe的OpenGL教程第43课源代码基础上,调用文泉驿正黑字体实现中文字体的显示 在OpenGL中显示汉字一直是个麻烦的事情,很多中文书籍的文抄公乐此不疲地介绍各种方法及其在windows下的代码实现.此处不在赘述,有兴趣的可以参考下面的文章: OpenGL点阵字体绘制终极解决方案!哈! 下面的代码是在NeHe教程第43课的基础上,添加了中文字体显示功能,原则上只要字体库支持,任何unicode字符串都是可以显示的 btw,unbutu下字体库文件位置:/usr/share/font…

A. Night at the Museum time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Grigoriy, like the hero of one famous comedy film, found a job as a night security guard at the museum. At first night…

Season 1, Episode 17: J-Cat -Pope: Hey, that's looking good. 嗨,看起来真棒 You're making some real progress. real: 真正的   progress: 进展 你大有进展啊 -Michael: The plaster adds a lot of weight. I may have to add reinforcements. plaster: 石膏 add: 增加 weight: 重量  reinf…

Hi there, I'm a CS PhD student at Stanford. I've worked on Deep Learning for a few years as part of my research and among several of my related pet projects is ConvNetJS - a Javascript library for training Neural Networks. Javascript allows one to ni…

Awesome Algorithms A curated list of awesome places to learn and/or practice algorithms. Inspired by awesome-awesomeness and all the other awesome Awesome libraries. If you want to contribute, please read the [contribution guidelines] (https://github…

由 www.169it.com 搜集整理 区间的概念类似于STL中的容器概念.一个区间提供了可以访问半开放区间[first,one_past_last)中元素的迭代器,还提供了区间中的元素数量的信息. 引入区间概念的目的在于:有很多类似于容器的类型,以及用于这些类型的简化算法. 实例代码: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 void test_range_construct_str…

转载于stackoverflow:http://stackoverflow.com/questions/388242/the-definitive-c-book-guide-and-list 感谢George Stocker的总结 Reference Style - All Levels A Tour of C++ (Bjarne Stroustrup) The "tour" is a quick (about 180 pages and 14 chapters) tutorial o…

不知道谁整理的,我就下了个word.所以就标注不了,引用的哪的了. Rank 1: SIGCOMM: ACM Conf on Comm Architectures, Protocols & Apps INFOCOM: Annual Joint Conf IEEE Comp & Comm Soc SPAA: Symp on Parallel Algms and Architecture PODC: ACM Symp on Principles of Distributed Computing…

I was going through the Coursera "Machine Learning" course, and in the section on multivariate linear regression something caught my eye. Andrew Ng presented the Normal Equation as an analytical solution to the linear regression problem with a l…

学习c++的书单 转自 http://stackoverflow.com/questions/388242/the-definitive-c-book-guide-and-list Beginner Introductory If you are new to programming or if you have experience in other languages and are new to C++, these books are highly recommended. C++ Pr…

(译注:这篇文章是 Donald Knuth 一篇1983年的论文:Literate Programming 的介绍部分.有人翻译为“字面编程”,是极其错误的说法,literate 根本就没有“字面”这个意思,字面的英文单词是 literal, literate 意指能读能写,Donald Knuth 同时也认为编程是一门艺术,因此将其译为“文艺编程”,甚为妥当.论文发表近30年,未见谁真正用好了LP.译此文,希望能更正至今都错误的中文译法.保守估计,10年内 LP 仍然不会流行起来,因为没有谁…

作者:hearts zh链接:https://www.zhihu.com/question/32222337/answer/55238928来源:知乎著作权归作者所有.商业转载请联系作者获得授权,非商业转载请注明出处. 其实现在的proposal很多很多,不出意外也会有相当一部分没时间加进c++17.c++17会是一个大更新,下一个小修补会是c++20 我个人认为从发展角度来说,c++目前最需要的,是module,网络库,以及更完善的并行库.我只稍微搬一下Stroustrup桑今年最新提交的提案…

多线程编程中还有一个重要的概念:Thread Local Store(TLS,线程局部存储),在boost中,TLS也被称作TSS,Thread Specific Storage.boost::thread库为我们提供了一个接口简单的TLS的面向对象的封装,以下是tss类的接口定义: class tss{public:    tss(boost::function1<void, void*>* pcleanup);    void* get() const;    void set(void*…

barrierbarrier类的接口定义如下:  1 class barrier : private boost::noncopyable   // Exposition only 2 { 3 public: 4   // construct/copy/destruct 5   barrier(size_t n); 6   ~barrier(); 7  8   // waiting 9   bool wait();10 }; barrier类为我们提供了这样一种控制线程同步的机制:前n - 1次…

除了thread,boost种:boost::mutexboost::try_mutexboost::timed_mutexboost::recursive_mutexboost::recursive_try_mutexboost::recursive_timed_mutex下面仅对boost::mutex进行分析.mutex类是一个CriticalSection(临界区)封装类,它在构造函数中新建一个临界区并InitializeCriticalSection,然后用一个成员变量void* m_…

A. Night at the Museum time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Grigoriy, like the hero of one famous comedy film, found a job as a night security guard at the museum. At first night…

factoextra is an R package making easy to extract and visualize the output of exploratory multivariate data analyses, including: Principal Component Analysis (PCA), which is used to summarize the information contained in a continuous (i.e, quantitati…

A. Night at the Museum time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Grigoriy, like the hero of one famous comedy film, found a job as a night security guard at the museum. At first night…

Question 1. (单选) 在计算机网络中,表征数据传输可靠性的指标是——21. 传输率2. 误码率3. 信息容量4. 频带利用率Question 2. (单选) 以下关于链式存储结构的叙述中哪一条是不正确的?——31. 结点除自身信息外还包括指针域,因此存储密度小于顺序存储结构2. 逻辑上相邻的结点物理上不必邻接3. 可以通过计算直接确定第i个结点的存储地址4. 插入.删除运算操作方便,不必移动结点Question 3. (单选) 以下哪一个不是栈的基本运算——21. 删除栈顶元素2. …

前言 前一段时间使用SpringBoot创建了一个webhook项目,由于近期项目中也使用了不少SpringBoot相关的项目,趁着周末,配置一下使用prometheus监控微服务Springboot. 项目配置 引入坐标 <!-- Exposition spring_boot --> <dependency> <groupId>io.prometheus</groupId> <artifactId>simpleclient_spring_boo…

转自:Caching in Presto Qubole’s Presto-as-a-Service is primarily targeted at Data Analysts who are tasked with translating ad-hoc business questions into SQL queries and getting results. Since the questions are often ad-hoc, there is some trial and err…