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How is set() implemented?

I've seen people say that set objects in python have O(1) membership-checking. How are they implemented internally to allow this? What sort of data structure does it use? What other implications does that implementation have? ...
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pull out p-values and r-squared from a linear regression

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Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0

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How to request a random row in SQL?

... 751 See this post: SQL to Select a random row from a database table. It goes through methods for doi...
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If vs. Switch Speed

... 185 The compiler can build jump tables where applicable. For example, when you use the reflector t...
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How can I use numpy.correlate to do autocorrelation?

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Numpy index slice without losing dimension information

... It's probably easiest to do x[None, 10, :] or equivalently (but more readable) x[np.newaxis, 10, :]. As far as why it's not the default, personally, I find that constantly having arrays with singleton dimensions gets annoying very quickly. I'd guess the nump...
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Math.random() explanation

... 165 int randomWithRange(int min, int max) { int range = (max - min) + 1; return (int)(M...
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C# LINQ find duplicates in List

... 601 The easiest way to solve the problem is to group the elements based on their value, and then pic...
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How to get the value from the GET parameters?

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