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Fast way of counting non-zero bits in positive integer
...alf again as much time).
On the other hand, gmpy popcount() took about 1/20th of the time of bin(n).count("1"). So if you can install gmpy, use that.
To answer a question in the comments, for bytes I'd use a lookup table. You can generate it at runtime:
counts = bytes(bin(x).count("1") for x in r...
How to wrap text in LaTeX tables?
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answered Apr 26 '09 at 14:32
moinudinmoinudin
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Choosing a file in Python with simple Dialog
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edited Aug 26 at 20:40
Try431
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answered Aug 26 '10 at 21:22...
ALTER DATABASE failed because a lock could not be placed on database
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Why Choose Struct Over Class?
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According to the very popular WWDC 2015 talk Protocol Oriented Programming in Swift (video, tran...
How to detect duplicate values in PHP array?
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Changing the child element's CSS when the parent is hovered
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edited Mar 20 '14 at 20:24
Jeff B
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How to get all files under a specific directory in MATLAB?
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Update: Given that this post is quite old, and I've modified this utility a lot for my own use d...