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Safe (bounds-checked) array lookup in Swift, through optional bindings?

... WARNING! Checking arrays this way can be really expensive. The contains method will iterate through all indices thus making this an O(n). A better way is to use the index and count to check the bounds. – Stefan Vasiljevic May 7 '...
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Calculate the median of a billion numbers

...bably too late if this had been an interview, but never mind: Machine 1 shall be called the "control machine", and for the sake of argument either it starts with all the data, and sends it in equal parcels to the other 99 machines, or else the data starts evenly distributed between the machines, an...
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SQL Server: What is the difference between CROSS JOIN and FULL OUTER JOIN?

... cross join produces a cartesian product between the two tables, returning all possible combinations of all rows. It has no on clause because you're just joining everything to everything. A full outer join is a combination of a left outer and right outer join. It returns all rows in both tables t...
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How to get an array of unique values from an array containing duplicates in JavaScript? [duplicate]

... With underscorejs _.uniq([1, 2, 1, 3, 1, 4]); //=> [1, 2, 3, 4] share | improve this answer | follow ...
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How do I update pip itself from inside my virtual environment?

...ate pip itself? According to pip --version , I currently have pip 1.1 installed in my virtualenv and I want to update to the latest version. ...
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href image link download on click

...t, it's a good thing to know. Although you need modernizr, I now use it in all my projects so... I'll accept your answer as the new answer – Pierre May 1 '13 at 12:05 1 ...
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Parsing a string into a boolean value in PHP

...urned only for "0", "false", "off", "no", and "", and NULL is returned for all non-boolean values. share | improve this answer | follow | ...
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A monad is just a monoid in the category of endofunctors, what's the problem?

...lete and Mostly Wrong History of Programming Languages, in which he fictionally attributes it to Philip Wadler. The original quote is from Saunders Mac Lane in Categories for the Working Mathematician, one of the foundational texts of Category Theory. Here it is in context, which is probably the bes...
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Deep Learning(深度学习)学习笔记整理系列之(四) - 大数据 & AI - 清泛...

Deep Learning(深度学习)学习笔记整理系列之(四)Deep_Learning_Series_4Deep Learning(深度学习)学习笔记整理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者:Zouxyversion 1.0 2013-04-08原文网址:h...Deep Learning(深度学习)学习笔记整理系列 zo...
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Making text background transparent but not text itself

... answered Sep 25 '13 at 21:44 BL_BL_ 1633 bronze badges add a comment ...