COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION Therefore, the conversion algorithm involves repeated multiplication by 2. At each step, the fractional part of the number from the previous step is multiplied by 2. The d…

Here is a simple algorithm about 'decimal' to 'dexadecimal',and the implementation code: /* Convert from decimal to binary,octonary and hexadecimal. */ package kju.decto; import kju.print.Printer; public class DecimalTo { public static String decToHe…

为什么要了解算法的效率? 一般来说,编程就是把各种已知的算法代入到自己的代码当中,以此来解决问题.因此,了解各种算法的效率对于我们选择一个合适的算法有很大帮助. 算法的效率由什么确定? 从算法分析的理论来讲,算法的效率通常由它们的复杂度来评估,包括时间复杂度和空间复杂度.由于现代计算机RAM空间充足,因此一般优先考虑时间复杂度. 时间复杂度用渐近记号(asymptotic notation)来表示,通常有 O. Θ和Ω 记号法.渐进的意思就是当问题的规模变大时,解决这个问题所耗费的时间增加了多少…

Dice Notation Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%lld & %llu Submit Status Practice ZOJ 3930 Description ... <Saika> I want to get some water from this strange lake. I have a bottle. <Keeper> OK. <Saika> T…

Reverse Polish notation is a notation where every operator follows all of its operands. For example, an expression (1+2)*(5+4) in the conventional Polish notation can be represented as 1 2 + 5 4 + * in the Reverse Polish notation. One of advantages o…

Binary Operations Time Limit: 2000 ms Memory Limit: 65535 kB Solved: 56 Tried: 674   Description   Bob has a sequence of N integers. They are so attractive, that Alice begs to have a continued part of it(a continued part here also means a continued s…

Latest SQLite binary for January 2015 Well I went through quite a few threads to find an updated, decent sqlite binary. Didn't find any that met that criteria. So I compiled one. Here's SQLite 3.8.7.4 combined into a single source file (the amalgamat…

bsdasm 来源 http://www.int80h.org/bsdasm/ Preface by G. Adam StanislavWhiz Kid Technomagic Assembly language programing under Unix is highly undocumented. It is generally assumed that no one would ever want to use it because various Unix systems run on…

考试周终于过去了一半,可以继续写USACO了. 先来看一下题目吧. Hamming CodesRob Kolstad Given N, B, and D: Find a set of N codewords (1 <= N <= 64), each of length B bits (1 <= B <= 8), such that each of the codewords is at least Hamming distance of D (1 <= D <= 7)…

2.Representing and Manipulating Information 本章从二进制.字长.字节序,一直讲到布尔代数.位运算,最后无符号.有符号整数.浮点数的表示和运算.诚然有些地方的数学证明有些枯燥,但总体上看,本章还是干货十足的! 2.1 Decimal vs. Binary Notation 我们习惯十进制只是因为我们有十根手指头(?),所以会对二进制感到不习惯.但是二值信号(two-value signal)在表示.存储.传输方面有巨大优势,从打孔带上的有没有孔洞(代码的…

xxd,能够查看linux下文件的二进制表示.man一下xxd.能够得到下面信息 NAME       xxd - make a hexdump or do the reverse. SYNOPSIS       xxd -h[elp]       xxd [options] [infile [outfile]]       xxd -r[evert] [options] [infile [outfile]] DESCRIPTION       xxd  creates  a hex dump…

目录 普通的例子 Notation 例子 p{width} 列分割符 @{} \multicolumn supertabular | longtabular 浮动体 table 浮动体 图片 \usepackage{graphicx} 其他的包我也不知道,反正用这个包,直接用TeXstudio创建就好了. \textwidth 作为图形的宽度,使得图形恰好充满整个页面. 图片 并排 图片 并排2 \usepackage{subfig} 那些自动写表格的软件搞出来的实在太丑,所以自己弄来试试,不一…

原文地址 Floating point numbers — Sand or dirt Floating point numbers are like piles of sand; every time you move them around, you lose a little sand and pick up a little dirt. — Brian Kernighan and P.J. Plauger Real numbers are a very important part of…

Important notes (changes that may break existing code) ====================================================== * Officially now only supporting XE2 and forward. Support for pre XE2 may not be complete. New stuff ========= - Added support for RAD Studi…

经过大半年的等待,kbmmw 的新版终于来了.经过近5年的打磨, kbmmw 的版本号升级到5了. kbmMW is a portable, highly scalable, high end application server and enterprise architecture integration (EAI) development framework for Win32, ..Net and Linux with clients residing on Win32, .Net, L…

Introduction Computer Network: hosts, routers, communication channels Hosts run applications Routers forward information Packets: sequence of bytes contain control information e.g. destination host Protocolis an agreement: meaning of packets structur…

在C#中如果float.double.decimal类型的值,小数点后的0太多时,C#会用科学记数法来表示小数的值. 例如下面的double类型0.00009,如果我们直接将其用ToString()方法转换为字符串,就会变为科学记数法9E-05 double number = 0.00009; string defaultNumber = number.ToString(); //9E-05 此外如果float.double.decimal类型的值只有整数位,且整数后面有很多0,C#也会用科学记…

http://acm.scau.edu.cn:8000/uoj/mainMenu.html 18113 Secret Book of Kungfu 该题有题解 时间限制:1000MS  内存限制:65535K提交次数:0 通过次数:0 题型: 编程题   语言: 不限定 Description Uncle Big is acknowledged as a master of kung fu. But he doesn't think so. He thinks that there are ma…

Hamming CodesRob Kolstad Given N, B, and D: Find a set of N codewords (1 <= N <= 64), each of length B bits (1 <= B <= 8), such that each of the codewords is at least Hamming distance of D (1 <= D <= 7) away from each of the other codewo…

xxd,能够查看linux下文件的二进制表示.man一下xxd.能够得到下面信息 NAME        xxd - make a hexdump or do the reverse. SYNOPSIS        xxd -h[elp]        xxd [options] [infile [outfile]]        xxd -r[evert] [options] [infile [outfile]] DESCRIPTION        xxd  creates  a hex…

前言 图片均来源网络 文章目录 前言 1.1 Super computer 1.2 Mainframe 1.3 Server 1.4 Desktop PC 1.5 Notebook or Laptop PC 1.6 Game device 1.7 Smart Phone 1.8 Terminal 2.1 Cluster 2.2 Load balancing 2.3 Cache 2.4 BIOS 2.5 System Bus 3.1 GPU 3.2 CPU 3.3 System or Mother…

原文链接:A re-introduction to JavaScript (JS tutorial) Why a re-introduction? Because JavaScript is notorious for being the world's most misunderstood programming language. It is often derided as being a toy, but beneath its layer of deceptive simplicity…

A re-introduction to JavaScript (JS Tutorial) Redirected from https://developer.mozilla.org/en-US/docs/JavaScript/A_re-introduction_to_JavaScript IN THIS ARTICLE Introduction Overview Numbers Strings Other types Variables Operators Control structures…

目录 | 上一节 (2.2 容器) | 下一节 (2.4 序列) 2.3 格式化 虽然本节稍微有点离题,但是当处理数据时,通常想要生成结构化的输出(如表格).示例: Name Shares Price ---------- ---------- ----------- AA 100 32.20 IBM 50 91.10 CAT 150 83.44 MSFT 200 51.23 GE 95 40.37 MSFT 50 65.10 IBM 100 70.44 字符串格式化 在 Python 3.6+…

数字格式化的 js 库 Numeral.js,是一个用于格式化数字和处理数字的 js 库. Tip:目前 Star 有 9.2k,5年以前就没有在更新.其文档写得不很清晰,比如它提供了多语言,但如何切换成中文,怎么使用却没有说,对于某些问题(abbreviations 报错)笔者只有从源码.更新日志和 Issues 中寻找答案. 使用它 node 中通过 npm 安装即可: PS E:\react-project> npm i numeral Tip:也可以在浏览器中直接通过 src 的方式使用…

Swift 语言 2014年6月3日发布,替代OBJECT-C Swift is a new programming language for creating iOS and OS X apps. Swift builds on the best of C and Objective-C, without the constraints of C compatibility. Swift adopts safe programming patterns and adds modern feat…

1. Longest Palindromic Substring ( 最长回文子串 ) 2. Median of Two Sorted Arrays (两个排序数组的中位数) 3. Sqrt(x) 4. Single Number && Single Number (II) 5. Integer to Roman && Roman to Integer 6. 3Sum && 4Sum [ && K sum ] && 3Sum…

Monday, May 7, 2012 The Lambda Calculus for Absolute Dummies (like myself)   If there is one highly underrated concept in philosophy today, it is computation. Why is it so important? Because computationalism is the new mechanism. For millennia, philo…

In This Document Section 1: Overview Section 2: Pre-Upgrade Steps Section 3: Upgrade and Configuration Section 4: Post-installation Steps Section 5: Known Issues Section 6: Appendices This document covers the procedure to upgrade the version of the J…

Blake is a CEO of a large company called "Blake Technologies". He loves his company very much and he thinks that his company should be the best. That is why every candidate needs to pass through the interview that consists of the following probl…