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Can hash tables really be O(1)?

...g at all bits then performance will become O(m). The hash function however does not have to be O(m) - it can be O(1). Unlike a cryptographic hash, a hash function for use in a dictionary does not have to look at every bit in the input in order to calculate the hash. Implementations are free to look ...
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Short description of the scoping rules?

... code3 for code4: code5 x() The for loop does not have its own namespace. In LEGB order, the scopes would be L: Local in def spam (in code3, code4, and code5) E: Any enclosing functions (if the whole example were in another def) G: Were there any x declared globa...
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Business logic in MVC [closed]

...s not a view necessarily goes in "M" or "C". "MVC is just not enough, it doesn't speak explicitely about business logic and where to put it" Sure it does. "M" is the model of your application, which is your data, the business logic around it, and anything and everything else that's not presentati...
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How do I set the selected item in a comboBox to match my string using C#?

... It does set the SelectedValue property of the control – Henryk Mar 5 '10 at 10:08 3 ...
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How to go from Blob to ArrayBuffer

... What's the performance of this? Does it copy the data in the Blob or just return a view of it? – GaryO Feb 26 at 15:30 ...
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Regular cast vs. static_cast vs. dynamic_cast [duplicate]

...type of the object is. It returns a null pointer if the object referred to doesn't contain the type casted to as a base class (when you cast to a reference, a bad_cast exception is thrown in that case). if (JumpStm *j = dynamic_cast<JumpStm*>(&stm)) { ... } else if (ExprStm *e = dynamic...
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XmlSerializer - There was an error reflecting type

Using C# .NET 2.0, I have a composite data class that does have the [Serializable] attribute on it. I am creating an XMLSerializer class and passing that into the constructor: ...
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Why can't stash be applied to the working directory?

...ectory that you want to keep. For this particular question he implies (but doesn't explicitly say) he is in a clean state, but I wanted to point that out for others coming here with local changes. – studgeek Feb 22 '13 at 14:48 ...
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Completion block for popViewController

...e-box This is technically correct because the UINavigationController API doesn't offer any options for this. However by using the CoreAnimation framework it's possible to add a completion block to the underlying animation: [CATransaction begin]; [CATransaction setCompletionBlock:^{ // handle ...
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How do you generate dynamic (parameterized) unit tests in python?

... Actually, bignose, this code DOES generate a different name for each test (it actually wouldn't work otherwise). In the example given the tests executed will be named "test_foo", "test_bar", and "test_lee" respectively. Thus the benefit you mention (and ...