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Time complexity of Sieve of Eratosthenes algorithm

...oose upper-bound is n(1+1/2+1/3+1/4+1/5+1/6+…1/n) (sum of reciprocals of all numbers up to n), which is O(n log n): see Harmonic number. A more proper upper-bound is n(1/2 + 1/3 + 1/5 + 1/7 + …), that is sum of reciprocals of primes up to n, which is O(n log log n). (See here or here.) The "find...
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Why can't code inside unit tests find bundle resources?

... main bundle. I have the following a problem. I am loading a png file. Normally this file is not in the main bundle due the user downloads it from a server. But for a test I want to use a file from the test bundle without copying it into the main bundle. – Chris ...
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List files with certain extensions with ls and grep

... 11 Answers 11 Active ...
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Detecting a redirect in ajax request?

... Community♦ 111 silver badge answered Feb 7 '12 at 13:42 Nick GarveyNick Garvey 2,7502121 ...
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jekyll markdown internal links

... qwtelqwtel 2,17411 gold badge1414 silver badges1010 bronze badges add a comme...
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Exposing a port on a live Docker container

...e -p flag with docker run to assign ports, but once a container is actually running, is there a command to open/map additional ports live? ...
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Understanding NSRunLoop

... run loop directly, though there are some (networking) components that may allow you to specify which run loop they will use for I/O processing. A run loop for a given thread will wait until one or more of its input sources has some data or event, then fire the appropriate input handler(s) to proce...
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Fastest Way to Serve a File Using PHP

...erywhere. Using the X-SendFile header As documented by others it's actually the best way. The basis is that you do your access control in php and then instead of sending the file yourself you tell the web server to do it. The basic php code is : header("X-Sendfile: $file_name"); header("Conten...
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Eclipse, regular expression search and replace

...\)) replace: ((TypeName)$1) Hint: CTRL + Space in the textboxes gives you all kinds of suggestions for regular expression writing. share | improve this answer | follow ...
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.net localhost website consistently making get arterySignalR/poll?transport=longPolling&connectionTo

...ewed the default.aspx page with the Firefox browser. When I check the net calls it has made, I see it making constant calls to: ...