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Why does this code using random strings print “hello world”?

.... The probability of obtaining that symbol, P(X = α), and its information content, I(α), are given by: P(X = α) = 1/|Σ'| = 1/27 I(α) = -log₂[P(X = α)] = -log₂(1/27) = log₂(27) For a word ω ∈ Σ* and its ⊥-terminated counterpart ω' := ω · ⊥ ∈ (Σ')*, we have I(ω) := I(ω')...
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Android image caching

...nnection(); connection.setUseCaches(true); Object response = connection.getContent(); if (response instanceof Bitmap) { Bitmap bitmap = (Bitmap)response; } Provides both memory and flash-rom cache, shared with the browser. grr. I wish somebody had told ME that before i wrote my own cache manag...
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design a stack such that getMinimum( ) should be O(1)

...tion. You need to design a stack which holds an integer value such that getMinimum() function should return the minimum element in the stack. ...
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Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps?

...an's suggestion: <html> <head> <meta name="viewport" content="width=device-width" /> </head> <body> <h2><a id="applink1" href="fb://profile/116201417">open facebook with fallback to appstore</a></h2> <h2><a id="applin...
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Why aren't Java Collections remove methods generic?

...s that two List objects are equal if they are both Lists and have the same contents, even if they are different implementations of List. So coming back to the m>exm>ample in this question, it is possible to have a Map<ArrayList, Something> and for me to call remove() with a LinkedList as argument,...
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Xcode 4 - slow performance

...n. Now find your project file. Right-click on it, and select Show Package Contents. Nm>exm>t, delete project.xcworkspace. Open Xcode and enjoy faster performance! Thanks to: http://meachware.blogspot.com/2011/06/speed-up-xcode-4.html Edit: I've gotten several comments about this noting tha...
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Why is iostream::eof inside a loop condition (i.e. `while (!stream.eof())`) considered wrong?

I just found a comment in this answer saying that using iostream::eof in a loop condition is "almost certainly wrong". I generally use something like while(cin>>n) - which I guess implicitly checks for EOF. ...
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Should I check in node_modules to git when creating a node.js app on Heroku?

...encies into source control, or pursue some other mechanism that can verify contents rather than versions. Shannon and Steven mentioned this before but I think, it should be part of the accepted answer. Update The source listed for the below recommendation has been updated. They are no longer reco...
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Is it possible to display inline images from html in an Android Tm>exm>tView?

...undle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); String source = "this is a test of <b>ImageGetter</b> it contains " + "two images: <br/>" + "<img src=\"http://developer.android.com/assets...
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How to compare 2 files fast using .NET?

...ion is: • for System.IO.FileInfo instances: public static bool AreFileContentsEqual(FileInfo fi1, FileInfo fi2) => fi1.Length == fi2.Length && (fi1.Length == 0 || File.ReadAllBytes(fi1.FullName).SequenceEqual( File.ReadAllBytes(fi2.FullName))); •...