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Big O of JavaScript arrays
Arrays in JavaScript are very easy to modify by adding and removing items. It somewhat masks the fact that most languages arrays are fixed-size, and require complex operations to resize. It seems that JavaScript makes it easy to write poorly performing array code. This leads to the question:
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Why does Dijkstra's algorithm use decrease-key?
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SortedList, SortedDictionary and Dictionary
I find that SortedList<TKey, TValue> SortedDictionary<TKey, TValue> and Dictionary<TKey, TValue> implement the same interfaces.
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Use find command but exclude files in two directories
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Build .so file from .c file using gcc command line
...eate a hello world project for Linux dynamic libraries (.so files). So I have a file hello.c:
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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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Case insensitive string as HashMap key
I would like to use case insensitive string as a HashMap key for the following reasons.
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Mercurial move changes to a new branch
I have a number of changes that I committed to my local repository, but have not yet been pushed. Since on a feature is taking longer than expected, I want to swap these changes onto a named branch before I push. How can I do this?
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