题目来源:http://poj.org/problem?id=1048 题目大意: 给定一个逻辑电路,求其逻辑输出.电路含一个或多个输入,以及一些双输入的与门/或门组成.电路图以下面形式的ASCII码图给出. 电路中,路径由横线,纵线和折点组成,'-'和'|'表示横线和纵线,'+'表示折点.输入由大写字母A到Z表示,输出由'?'表示.与门和或门的表示方法如图所示,而且它们的朝向时钟与图示一致(不会反向或成竖直方向).门的输入和输出可以被取“非”,用小写的'o'表示.下图最右为一个简单但完整的电路…

POJ 排序的思想就是根据选取范围的题目的totalSubmittedNumber和totalAcceptedNumber计算一个avgAcceptRate. 每一道题都有一个value,value = acceptedNumber / avgAcceptRate + submittedNumber. 这里用到avgAcceptedRate的原因是考虑到通过的数量站的权重可能比提交的数量占更大的权重,所以给acceptedNumber乘上了一个因子. 当然计算value还有别的方法,比如POJ上…

acm之pku题目分类 对ACM有兴趣的同学们可以看看 DP:  1011   NTA                 简单题  1013   Great Equipment     简单题  1024   Calendar Game       简单题  1027   Human Gene Functions   简单题  1037   Gridland            简单题  1052   Algernon s Noxious Emissions 简单题  1409   Commun…

https://www.toptal.com/php/10-most-common-mistakes-php-programmers-make PHP makes it relatively easy to build a web-based system, which is much of the reason for its popularity. But its ease of use notwithstanding, PHP has evolved into quite a sophis…

原文地址: http://www.toptal.com/php/10-most-common-mistakes-php-programmers-make 译文地址:http://codecloud.net/php-2056.html Common Mistake #1: Leaving dangling array references after foreach loops Not sure how to use foreach loops in PHP? Using references i…

以下是poj百道水题,新手可以考虑从这里刷起 搜索1002 Fire Net1004 Anagrams by Stack1005 Jugs1008 Gnome Tetravex1091 Knight Moves1101 Gamblers1204 Additive equations 1221 Risk1230 Legendary Pokemon1249 Pushing Boxes 1364 Machine Schedule1368 BOAT1406 Jungle Roads1411 Annive…

This will be a series of post about Tree model and relevant ensemble method, including but not limited to Random Forest, AdaBoost, Gradient Boosting and xgboost. So I will start with some basic of Information Theory, which is an importance piece in T…

In the previous post I go through basic 1-layer Neural Network with sigmoid activation function, including How to get sigmoid function from a binary classification problem? NN is still an optimization problem, so what's the target to optimize? - cost…

一路跟踪源码,关键就是这两句: int QDialog::exec() { Q_D(QDialog); if (d->eventLoop) { qWarning("QDialog::exec: Recursive call detected"); ; } bool deleteOnClose = testAttribute(Qt::WA_DeleteOnClose); setAttribute(Qt::WA_DeleteOnClose, false); d->resetMo…

Introduction Creating a generic repository pattern in an mvc application with entity framework is the first topic that we are about to cover in our journey of learning my mvc template. this article will focus on repository pattern and shows how to de…

Business logic 业务逻辑 From Wikipedia, the free encyclopedia 来自Wikipedia,自由的百科全书 In computer software, business logic or domain logic is the part of the program that encodes the real-world business rules that determine how data can be created, displayed…

SW-DP (Serial Wire Debug Port) Analyzer plugin for the Saleae Logic The SW-DP protocol is described by the following publicly available documents: DDI 0316 CoreSight™ DAP-Lite Technical Reference Manual Programming Internal Flash Over the Serial Wire…

Voltage Translation for Analog to Digital Interface ADC http://openschemes.com/2010/03/23/zeroplus-logic-cube-review-and-teardown/ LAP 16032 has 4.5MBIT SRAM and can aquire up to 128k per chn, now my LAP 16032 has 18MBIT SRAM It’s a good product, and…

CMOS logic is a newer technology, based on the use of complementary MOS transistors toperform logic functions with almost no current required. [1] This makes these gates very useful inbattery-powered applications. The fact that they will work with su…

在正文开始之前需要介绍一个人:Sean Sexton. 来自明尼苏达双城的软件工程师.最为出色的是他维护了两个博客:2,000Things You Should Know About C# 和 2,000 Things You Should Know About WPF .他以类似微博式的150字简短语言来每天更新一条WPF和C#重要又容易被遗忘的知识.Follow他的博客也有一段日子了,很希望能够分享给大家. 本系列我不仅会翻译他的每一个tip,也会加入自己开发之中的看法和见解.本系列我希望自…

Design partion Design partion常用于“增益变量(QIC)”,通过Design Partition对子模块进行“逻辑分区”,在Design Partition Window中最关键的一个设定是Netlist Type,它有四个可选值——Source File,Post-Synthesis,Post-fit,Empty(如上图中所标1,2,3,4,上图是为了将各Type全面的显现出来,而不是最终设定).它们各自的含义是: Source File:如果源代码未修改,则仅不重…

<logic:notEmpty name="sList" scope="request"> <logic:iterate id="element" indexId="index" name="sList"> <tr> %>.</td> <td><bean:write name="element"/></t…

Overview Scroll Follow is a simple jQuery plugin that enables a DOM object to follow the page as the user scrolls. Scroll Follow has been successfully tested on IE6, IE7, FF2, FF3, Safari 3, and Opera 9 on Windows. It has been successfully tested on…

在现在牛津英语上,as follow 和 as follows 用法差不多的,但后者更常用,不是说谁指一个谁指好几个.牵强附会! 为了保证正确性,你应该用as follows,单数的最好少用.意义差不多,只是口语中多些 英文的电子邮件时常会涉及到“具体情况/列表/名单如下”这样的表达法.这其实就是as follows 与following 的用法.总的来说是多用as follows,少用following 就好.具体的阐述和解释as follows: as follows与following 的…

Okay for centos 6.4 also On apu.0xdata.loc, after this install was done $ which python /usr/local/bin/python $ python -V Python 2.7.3 $ ls -ltr /usr/local/bin/pyth* lrwxrwxrwx 1 root root 24 Jan 30 2013 /usr/local/bin/python -> /usr/local/bin/python2…

import hjzgg.first.First; import java.util.LinkedHashMap; import java.util.Map; import java.util.Set; import java.util.TreeMap; import java.util.TreeSet; public class Follow { private Map<String, Set<Character>> first = null; private Map<St…

绘制Logic Decal图形: 1.Gate Decal与Part Type的区别: Gate Decal:即元器件在原理图中所展现出来的形状 Part Type:将元件图形.电气特性都进行定义后所形成的可供调用的元件 注:单纯的Gate Decal是无法调用的,必须经过Part Type定义 使用Tool——Part Edit——Edit Graphic建立图形 使用Edit Electrical定义电气特性 元件建立技巧: 1.为避免元件建立过多太繁杂,使用Edit Electrical时…

<logic:iterate>主要用来处理在页面上输出集合类,集合一般来说是下列之一: 1. java对象的数组 2. ArrayList.Vector.HashMap等 具体用法请参考struts文档,这里不作详细介绍 现在定义一个class,User.java 把它编译成User.class package example; import java.io.Serializable; public final class User implements Serializable { priv…

转载地址:http://www.blogjava.net/nokiaguy/archive/2009/01/archive/2009/01/archive/2009/01/archive/2009/01/archive/2009/01/archive/2009/01/archive/2009/01/19/251967.html Struts Logic标签库包含了如下三类标签:     1. 循环标签:iterate标签.用于枚举数组.集合类型对象中的元素. 2. 条件处理标签:用于是否相等.比…

在使用Synplify综合时,此工具会自动优化我的设计. 当然此功能有好有坏,最近有个项目需要使用Chipscope观察内部信号,打开inserter就懵了,信号列表中我的设计有的是名字被改了,有的是干脆给优化没了. 网上当然也有人提出这个问题, 例如 http://www.xilinx.com/support/answers/5249.html 就提供了一个 /* synthesis syn_keep = 1 */ 的语法来保留自己的设计. 随后又以 /* synthesis syn_keep…

Jmeter之逻辑控制器(Logic Controller) 前言: 1. Jmeter官网对逻辑控制器的解释是:“Logic Controllers determine the order in which Samplers are processed.”.意思是说,逻辑控制器可以控制采样器(samplers)的执行顺序.由此可知,控制器需要和采样器一起使用,否则控制器就没有什么意义了.放在控制器下面的所有的采样器都会当做一个整体,执行时也会一起被执行. 2.JMeter中的Logic Con…

使用页面Tag判断某个值为空值时,不能使用logic:equal(无效),可以使用logic:notPresent…

Introduction A Unit of Work is a combination of several actions that will be grouped into a transaction. This means that all actions inside a unit of work are committed or rolled back. The advantage of using a unit of work is that multiple save actio…

Introduction After having gone through many project: Project A Project B Project C I start to write a conclusion it explained how to use mvc template. My effort in this articles series will be to cover some best practice of mvc. We will be gradually…

logic  <logic:iterate> <% Dog dog1=new Dog(); dog1.setAge(2); dog1.setName("xiaoming"); Dog dog2=new Dog(); dog2.setAge(2); dog2.setName("xiaoming"); Dog dog3=new Dog(); dog3.setAge(2); dog3.setName("xiaoming"); Lin…