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Creating an adjacency List for DFS

- by user200081

I'm having trouble creating a Depth First Search for my program. So far I have a class of edges and a class of regions. I want to store all the connected edges inside one node of my region. I can tell if something is connected by the getKey() function I have already implemented. If two edges have the same key, then they are connected. For the next…

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I'm new to C++. Please Help me with the Linked List (What functions to add)?

- by Igal

DEAR All; Hi, I'm just beginner to C++; Please help me to understand: What functions should be in the Linked list class ? I think there should be overloaded operators << and ; Please help me to improve the code (style, errors, etc,) Thanks for advance. Igal. Please review the small code for the…

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Is this (Lock-Free) Queue Implementation Thread-Safe?

- by Hosam Aly

I am trying to create a lock-free queue implementation in Java, mainly for personal learning. The queue should be a general one, allowing any number of readers and/or writers concurrently. Would you please review it, and suggest any improvements/issues you find? Thank you. import java.util.concurrent.atomic.AtomicReference; public class…

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Adding Polynomials (Linked Lists)......Bug Help

- by Brian

I have written a program that creates nodes that in this class are parts of polynomials and then the two polynomials get added together to become one polynomial (list of nodes). All my code compiles so the only problem I am having is that the nodes are not inserting into the polynomial via the insert method I have in polynomial.java and…

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Prolog: Sentence Parser Problem

- by Devon

Hey guys, Been sat here for hours now just staring at this code and have no idea what I'm doing wrong. I know what's happening from tracing the code through (it is going on an eternal loop when it hits verbPhrase). Any tips are more then welcome. Thank you. % Knowledge-base det(the). det(a). adjective(quick). adjective(brown).…

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Is there any issues with always self closing empty tags in html?

- by Simon

Are there any browser issues with always collapsing empty tags in html. So for example and empty head can be written like this <head></head> but is can also be written like this <head/> Will the second case cause issues in any scenerio? Thanks

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Introduction to the ASP.NET Web API

- by Stephen.Walther

I am a huge fan of Ajax. If you want to create a great experience for the users of your website – regardless of whether you are building an ASP.NET MVC or an ASP.NET Web Forms site — then you need to use Ajax. Otherwise, you are just being cruel to your customers. We use Ajax extensively in several of the ASP.NET applications that…

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Introduction to the ASP.NET Web API

- by Stephen.Walther

I am a huge fan of Ajax. If you want to create a great experience for the users of your website – regardless of whether you are building an ASP.NET MVC or an ASP.NET Web Forms site — then you need to use Ajax. Otherwise, you are just being cruel to your customers. We use Ajax extensively in several of the ASP.NET applications that…

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Why is CDATA needed and not working everywhere the same way?

- by baptx

In Firefox's and Chrome's consoles, this works (alerts script content): var script = document.createElement("script"); script.textContent = ( function test() { var a = 1; } ); document.getElementsByTagName("head")[0].appendChild(script); alert(document.getElementsByTagName("head")[0].lastChild.textContent); …

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Azure Grid Computing - Worker Roles as HPC Compute Nodes

- by JoshReuben

Overview · With HPC 2008 R2 SP1 You can add Azure worker roles as compute nodes in a local Windows HPC Server cluster. · The subscription for Windows Azure like any other Azure Service - charged for the time that the role instances…

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Javascript || or operator with a undefinded variable

- by bryan sammon

I have been doing some reading lately one article I read was from Opera. http://dev.opera.com/articles/view/javascript-best-practices/ In that article they write this: Another common situation in JavaScript is providing a preset value for a variable if it is not defined, like so: if(v){ var x = v; } else { …

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Exposing a pointer in Boost.Python

- by Goose Bumper

I have this very simple C++ class: class Tree { public: Node *head; }; BOOST_PYTHON_MODULE(myModule) { class_<Tree>("Tree") .def_readwrite("head",&Tree::head) ; } I want to access the head variable from Python, but the message I see is: No to_python (by-value) converter found for…

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is it wasteful/bad design to use a vector/list where in most instances it will only have one element

- by lucid

is it wasteful/bad design to use a vector/list where in most instances it will only have one element? example: class dragon { ArrayList<head> = new ArrayList<head> Heads; tail Tail = new tail(); body Body = new body(); dragon() { theHead=new head(); Heads.add(theHead); …

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typedef of a template with a template type as its parameter

- by bryan sammon

Im having a problem with a typedef below, I can seem to get it right: template <typename T> struct myclass1 { static const int member1 = T::GetSomeInt(); }; template <int I> struct myclass2 { typedef myclass1< myclass2<I> > anotherclass; static int GetSomeInt(); }; anotherclass MyObj1; //…

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How to get the changes on a branch in git

- by Greg Hewgill

What is the best way to get a log of commits on a branch since the time it was branched from the current branch? My solution so far is: git log $(git merge-base HEAD branch)..branch The documentation for git-diff indicates that "git diff A...B" is equivalent to "git diff $(git-merge-base A B) B". On the other hand, the…

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How to ignore CDATA tags?

- by Petre

I'm trying to make an html parser, but when I load the html I get warnings like this Warning: DOMDocument::loadHTML() [domdocument.loadhtml]: Invalid char in CDATA 0x1C in Entity, line: 1302 Here is the code I use class Parser { public $url=null; public $html=null; public $tidy=null; public $head=null; public…

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Undefined reference to ...

- by Patrick LaChance

I keep getting this error message every time I try to compile, and I cannot find out what the problem is. any help would be greatly appreciated: C:\DOCUME~1\Patrick\LOCALS~1\Temp/ccL92mj9.o:main.cpp:(.txt+0x184): undefined reference to 'List::List()'…

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Zend Framework: how to remove rendered views in the controller?

- by takpar

i want to render one of these sets of views: head body-$id1 foot OR head body-$id2 foot which set exsists. i do it like this: try { $this->render("head"); $this->render("body-$id1"); $this->render("foot"); } catch…

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Javascript recursive data structure definition

- by Matt Bierner

I need to define a data structure recursively in Javascript. Here is a simple example of a circular linked list: // List a very simplified example of what the actual (non list) code does. function List(f, r) { return function(){ return [f,…

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Last element not getting insert in Tree

- by rdk1992

So I was asked to make a Binary Tree in Haskell taking as input a list of Integers. Below is my code. My problem is that the last element of the list is not getting inserted in the Tree. For example [1,2,3,4] it only inserts to the tree until…

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Hard drive failed, suspected filesystem corruption, still cannot salvage any data from harddrive

- by Hippy-Head

Firstly, I am terribly sorry if this is a duplicate, but I couldn't find a similar issue to mine, so here goes. I have a 1TB hdd bought around 8 months ago used as backup hard drive. I have not used the drive for a period of time…

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Ragdoll continuous movement

- by Siddharth

I have created a ragdoll for my game but the problem I found was that the ragdoll joints are not perfectly implemented so they are continuously moving. Ragdoll does not stand at fix place. I here paste my work for that and suggest…

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What affects video encoding speeds?

- by Pig Head

FRAPs doesn't compress its videos when you record, so the files are enormous. In a long recording you can get up to a few hundred gigabytes. Obviously, usually you would need to convert/compress them. What affects the speed of…

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Is there a way to snip part of the screen with a hotkey?

- by Head of Catering

I'm able to launch the snipping tool, select an option and then copy based on my selection. Is there a way to launch a default snipping option so that I can create partial screen screenshots without using a third-party tool? …

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Excel Subtotal if adjacent column is not blank

- by Head of Catering

I'm trying to create a subtotal for a range that excludes rows that don't have a wholesale price. I have a range of products, prices and units that have subtotals by brand, although the brand subtotal is a sum and not a…

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