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Is Big O(logn) log base e?

...nary search tree type of data structures, I see the Big O notation is typically noted as O(logn). With a lowercase 'l' in log, does this imply log base e (n) as described by the natural logarithm? Sorry for the simple question but I've always had trouble distinguishing between the different impli...
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Is explicitly closing files important?

In Python, if you either open a file without calling close() , or close the file but not using try - finally or the " with " statement, is this a problem? Or does it suffice as a coding practice to rely on the Python garbage-collection to close all files? For example, if one does this: ...
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Tracking Google Analytics Page Views with AngularJS

...cs does not count it as a new page load. Fortunately there is a way to manually tell GA to log a url as a new pageview. _gaq.push(['_trackPageview', '<url>']); would do the job, but how to bind that with AngularJS? Here is a service which you could use: (function(angular) { angular.modu...
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How do search engines deal with AngularJS applications?

...g tabs. The tabs hide and show content, and the content is inserted dynamically, either using AJAX or by simply setting display:none and display:block to hide and show the correct tab content. When the tabs are clicked, use pushState to update the url in the address bar. When the page is rendered, ...
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Immutable vs Mutable types

... Almost, but not exactly. Technically, all variables are passed by reference in Python, but have a semantics more like pass by value in C. A counterexample to your analogy is if you do def f(my_list): my_list = [1, 2, 3]. With pass-by-reference in C, the val...
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Make sure that the controller has a parameterless public constructor error

... What's happening is that you're bitten by this problem. Basically, what happened is that you didn't register your controllers explicitly in your container. Unity tries to resolve unregistered concrete types for you, but because it can't resolve it (caused by an error in your configurat...
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Installing Java on OS X 10.9 (Mavericks)

I have installed the JDK on Mac OS X v10.8 (Mountain Lion). When I upgraded it to Mac OS X v10.9 (Mavericks) and ran java -version in the terminal, it showed: ...
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What is the difference between #import and #include in Objective-C?

... decent header files protect themselves against this anyway, so it's not really that much of a benefit. Basically, it's up to you to decide which you want to use. I tend to #import headers for Objective-C things (like class definitions and such) and #include standard C stuff that I need. For exampl...
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Read file from line 2 or skip header row

... This is fine UNTIL the file is too large to read. This is fine for small files. – CppLearner Feb 5 '18 at 2:05 1 ...
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system(“pause”); - Why is it wrong?

...upon because it's a platform-specific hack that has nothing to do with actually learning programming, but instead to get around a feature of the IDE/OS - the console window launched from Visual Studio closes when the program has finished execution, and so the new user doesn't get to see the output o...