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How do you rotate a two dimensional array?
Inspired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
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What does Expression.Quote() do that Expression.Constant() can’t already do?
... of the earlier question “What is the purpose of LINQ's Expression.Quote method?” , but if you read on you will see that it doesn’t answer my question.
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What C++ Smart Pointer Implementations are available?
...ion thread where what I thought was a simple answer generated a lot of comments about some specific smart pointer implementations so it seemed worth starting a new post.
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What does 'super' do in Python?
...ingle-inheritance are minimal -- mostly, you don't have to hard-code the name of the base class into every method that uses its parent methods.
However, it's almost impossible to use multiple-inheritance without super(). This includes common idioms like mixins, interfaces, abstract classes, etc. Th...
How using try catch for exception handling is best practice
while maintaining my colleague's code from even someone who claims to be a senior developer, I often see the following code:
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What techniques can be used to speed up C++ compilation times?
What techniques can be used to speed up C++ compilation times?
27 Answers
27
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Rebasing a branch including all its children
...s C | \
xargs -n 1 \
git rebase --committer-date-is-author-date --preserve-merges --onto B C^
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Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?
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Good to see someone's chimed in about Lucene - because I've no idea about that.
Sphinx, on the other hand, I know quite well, so let's see if I can be of some help.
Result relevance ranking is the default. You can set up your own sortin...
Do asynchronous operations in ASP.NET MVC use a thread from ThreadPool on .NET 4
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Here's an excellent article I would recommend you reading to better understand asynchronous processing in ASP.NET (which is what asynchronous controllers basically represent).
Let's first consider a standard synchronous action:
public ActionResult Index()
{
//...
Fast permutation -> number -> permutation mapping algorithms
I have n elements. For the sake of an example, let's say, 7 elements, 1234567. I know there are 7! = 5040 permutations possible of these 7 elements.
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