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Counting inversions in an array

...14) 6 is in the 4th position of array B, thus there are 3 inversions. We know this because 6 was in the first position in array A, thus any lower value element that subsequently appears in array A would have an index of j > i (since i in this case is 1). 2.b: Remove A[1] from array A and also f...
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Is there a performance difference between i++ and ++i in C++?

...ent translation units. Compiler with g++ 4.5. Ignore the style issues for now // a.cc #include <ctime> #include <array> class Something { public: Something& operator++(); Something operator++(int); private: std::array<int,PACKET_SIZE> data; }; int main () { S...
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How to len(generator()) [duplicate]

...'s no "infinity" integer in Python. And what about generators that don't know when they'll be done? To write an efficient __len__ method for a Goldbach's Conjecture generator, you'd first have to answer one of the biggest open questions in mathematics. – Kevin J. Chase ...
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Why does Razor _layout.cshtml have a leading underscore in file name?

...ghtful answer. I was under the misapprehension that Razor was tied to MVC. Now I see the reason for the leading underscore is to prevent them from being served directly under ASP.NET Web Pages. – richb Jan 3 '11 at 1:53 ...
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How to override the copy/deepcopy operations for a Python object?

...se where pickling and copying need to be different. In fact, I don't even know why copy tries to use the pickling protocol by default. Copying is for in-memory manipulation, pickling is for cross-epoch persistence; they are completely different things that bear little relation to each other. ...
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Is there a way to cache GitHub credentials for pushing commits?

...or push/pull/fetch/clone operation). Note: with Git 2.18 (Q2 2018), you now can customize the GPG used to decrypt the encrypted .netrc file. See commit 786ef50, commit f07eeed (12 May 2018) by Luis Marsano (``). (Merged by Junio C Hamano -- gitster -- in commit 017b7c5, 30 May 2018) git-cr...
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Extracting text from HTML file using Python

... I know that's not (AT ALL) the place, but i follow the link to Aaron's blog and github profile and projects, and found myself very disturbed by the fact there is no mention of his death and it's of course frozen in 2012, as if t...
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How to declare string constants in JavaScript? [duplicate]

...t serves a similar purpose FOO : "foofoo", BAR : "barbar", } You can now print out 'foofoo' with jsEnum.FOO share | improve this answer | follow | ...
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Python's equivalent of && (logical-and) in an if-statement

... || and ! are not valid Python operators. Some of the operators you may know from other languages have a different name in Python. The logical operators && and || are actually called and and or. Likewise the logical negation operator ! is called not. So you could just write: if len(a) % ...
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Simplest way to detect a mobile device in PHP

... this answer is now so obsolete. there are many false positives, safari on OSX is detected as a mobile, Chrome on OSX detected as Mobile. – DevZer0 May 25 '16 at 14:21 ...