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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...
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Strtotime() doesn't work with dd/mm/YYYY format

... 403 Here is the simplified solution: $date = '25/05/2010'; $date = str_replace('/', '-', $date); e...
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Get record counts for all tables in MySQL database

... | edited May 17 '17 at 0:15 JayRizzo 1,66222 gold badges2121 silver badges3333 bronze badges answered...
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Superscript in CSS only?

... answered Feb 1 '09 at 22:15 Peter BoughtonPeter Boughton 99.2k2929 gold badges114114 silver badges168168 bronze badges ...
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XMLHttpRequest status 0 (responseText is empty)

Cannot get data with XMLHttpRequest (status 0 and responseText is empty): 19 Answers 1...
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javascript: Clear all timeouts?

... 150 They are not in the window object, but they have ids, which (afaik) are consecutive integers. S...
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Microsoft Roslyn vs. CodeDom

... (somewhat) langage agnostic way to generate code that was added in .NET 1.0 to support designers (a la WinForms). Because CodeDom was an attempt at providing a unified model that can generate code in C#, VB, and other languages, it lacks high fidelity with any of the languages that it supports (tha...
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Defining custom attrs

...together: <attr name="my_flag_attr"> <flag name="fuzzy" value="0x01" /> <flag name="cold" value="0x02" /> </attr> In addition to attributes there is the <declare-styleable> element. This allows you to define attributes a custom view can use. You do this by specif...
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Checking if a key exists in a JavaScript object?

... | edited Oct 10 '19 at 18:56 answered Jul 8 '09 at 15:51 ...
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What is the difference between min SDK version/target SDK version vs. compile SDK version?

...nner project. – Matt Jul 28 '15 at 20:25 1 ...