edx cs50

Generic program example: the full name of CS50 CS50 is Introduction to Computer ScienceIt is a general idea of Harvard University. Open a notebook on edx, anyone can repair it, or even some TA to help you transform your career (only program production, excluding other topics such as compile-based production) For the first time I heard about

Lesson 1 C language, source code, compiler (1)-2011.10.11 Programming philosophy, extracted from the format syntax of the statement. This section describes loop, logical expressions, arrays, abstract concepts, and examples of C statements. Source code, compiler, GCC-ohello hello. C, make hello, GCC-O hello. c-LCs50(Load libary ). Describes functions. Every user can register a name on a server created in cs50 and log on via ssh. This is also known as c

Premise:1. Install Ubuntu2. use vagrant+virtualbox to build the EdX Developer Stackon ubuntn and to successfully access3. Pycharm-3.4.1 is installed and activated successfully under Ubuntu4. future development in Ubuntu environmentPreparatory work:1. convert path to native /devstack/2. turn on vagrantand enter the command:Vagrantup3. using ssh connection vagrant, enter the command:Vagrantssh4. give the edxapp account A password, enter the command:SU

Open Online education platform EdX opened in June this year, when the Google group method "clean install on Ubuntu Server 12.04" in a brand new VPS installed A, although the final installation was successful, but also spent some trouble, Finally, the overall impression of the edx system is somewhat bloated, dependent on too much, not too lightweight. A few days ago a friend of Peking University in the insta

After practicing for several days edx Devstack, found himself e is still so poor, if and I like, continue to look down, otherwise you can gently drift over ~1. Run the edx devstackCd/devstackVagrant upVagrant SSH(The above should be more familiar with:)This article refer to Https://github.com/edx/edx-platform/wiki/Inte

Label: Ar c working time r as Rom net 5CATEGORY first, 1. skill category; 2. improvement category; 3. Interest category.I have completed the first six courses of Andrew Ng ml, UW computer network, and dataset cience on Coursera.In the future, the service will be guaranteed to be 25 hours a week, with an average of 2.5-3 hours per working day and 11 hours on weekends. In this way, three courses can be conducted at the same time in less than ten weeks, it also needs to be arranged according to the

Note: During addition calculation, it is actually performed on a 32-bit accumulators, and pay attention to the conversion between types. Data truncation problems generally include ax, BX, CX, Dx. Ax: cumulative latches, Bx: Base latches, CX: Count latches, DX: Data latches Index latches: Si and Di Si: source index storage, DI: Destination index Storage Stack and base latches: SP and BP SP: stacked indicator latches, BP: Base Indicator latches Eax, ECx,

Functions of EAX, ECX, EDX, and EBX registers, ecxebx General registers: AX, BX, CX, DXAX: cumulative latches, BX: Base latches, CX: Count latches, DX: Data latchesIndex latches: SI and DISI: source index storage, DI: Destination index StorageStack and base latches: SP and BPSP: stacked indicator latches, BP: Base Indicator latchesEAX, ECX, EDX, and EBX: extensions of ax, bx, cx, and dx, each of which is 32

Recently, due to work, an open EdX instance was installed in Ubuntu virtual machine on Azure, and the installation process encountered a lot of problems, and learned different knowledge in the process of finding the answer from the Internet.Create an authentication certificate file for SSHWhen connecting to an Ubuntu virtual machine using the Putty (http://www.putty.org/) tool, two options are available for authentication: username + password; Another

;Sb.append (Hexdigits[b >> 4]);Sb.append (Hexdigits[b 15]);Sb.append (");}return sb.tostring ();}private static class Savingtrustmanager implements X509trustmanager {Private Final X509trustmanager TM;Private x509certificate[] chain;Savingtrustmanager (X509trustmanager tm) {This.tm = TM;}Public x509certificate[] Getacceptedissuers () {throw new Unsupportedoperationexception ();}public void checkclienttrusted (x509certificate[] chain, String authtype)Throws Certificateexception {throw new Unsuppo

Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example:Add eax,-2;// It can be considered that a value such as-2 is added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features. EaxIt is an accumulator, which is t

From: http://hi.baidu.com/helloembed/blog/item/2fd65453843120511038c21a.html Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example: Add eax,-2; // it can be considered to be a value such as-2 added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "experti

Organize from the Internet Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example: Add eax,-2; // it can be considered to be a value such as-2 added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features. Eax is the ac

Lesson 17th PHP language and database-2011.11.6 POST facilitates the transmission of private information and binary information, such as examples. Get can copy the link to access webpages in the same status. For example, you can use linux cron to

Lesson 7th functions, arrays, strings, and search algorithms-2011.10.25 For example, a phishing hacker can copy an HTML page and modify a link to upload username and passwd to another server. For encryption and decoding, the same key is vulnerable

Assume is s a string of lower case characters.Write A program This prints the longest substring of in s which the letters occur in alphabetical order. For example, if s = ‘azcbobobegghakl‘ , then your program should printLongest substring in

Channel that describes browser warfare, network bubbles, and more. Teach Yourself Computer Science study How to Does CPU Execute program (VIDEO) Videos: How the CPU executes programs Machine code Instructions (VIDEO): Instructions Harvard cs50-asymptotic Notation (VIDEO) Videos: Harvard cs50-progressive notation Cracking The Code interview code interview hack guide Cracking the Coding interview-fullstack S

), but also uncommon to try, the process is relatively simple, just a little bit of this platform to open a bit slow. First, registered edx account The code is as follows Copy Code Website: https://courses.edx.org/register We need to go to the EDX registration account, the process is very simple, fill out personal information, and then acti

; 2147483647) {$ v1 = floor ($ v1/2); $ v2 --;} $ V3 = $ v1 >>$ v2; // While ($ v3> 4294967295) $ v3 = $ v3-4294967296; Return $ v3; } Function fxr ($ v1, $ v2) { $ V3 = $ v1 ^ $ v2; While ($ v3> 4294967295) $ v3 = $ v3-4294967296; While ($ v3 Return $ v3; } Function z ($ var) { GLOBAL $ var; Print $ var. "=". $ var .""; } Function get_ch ($ url) { $ C1 = 0xE6359A60; $ C2 = 0x9E3779B9; $ Url = "info:". $ url; // Z ('URL '); // Uint $ _ eax, $ _ edi, $ _ ecx, $ _

. Through this course, students should be able to learn basic SAP technology.5. Diploma in Multimedia development (Multimedia development) Alison teaches you how to use multimedia tools such as Adobe Photoshop, Windows Movie Maker, Adobe Flash, Audacity, Director MX, and Adobe After effects to create video, visual effects, Motion graphics and animations. This is a fully autonomous course, so you can freely arrange your study time. The course takes about 10-15 hours to study. At the end of th