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unsigned APK can not be installed

...people for testing. I have installed it on my Desire directly from eclipse and it works fine. 7 Answers ...
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Is there a way to measure how sorted a list is?

...Formally, let A(1), A(2), ..., A(n) be a sequence of n numbers.If i < j and A(i) > A(j), then the pair (i,j) is called an inversion of A. The inversion number of a sequence is one common measure of its sortedness.Formally, the inversion number is defined to be the number of inversions, that is...
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Android: How to enable/disable option menu item on button click?

...enu() method is called only once, as described above. The system keeps and re-uses the Menu you define in this method until your activity is destroyed. If you want to change the Options Menu any time after it's first created, you must override the onPrepareOptionsMenu() method. This ...
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How can I mark “To Do” comments in Xcode?

...se //FIXME: or #warning. when you use #warning, you got a warning in Xcode and you can jump directly to that part. – brush51 Jun 4 '13 at 8:48 6 ...
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How to wait for several Futures?

Suppose I have several futures and need to wait until either any of them fails or all of them succeed. 8 Answers ...
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What are 'closures' in .NET?

... The general feature of closures is implemented in C# by anonymous methods and lambda expressions. Here's an example using an anonymous method: using System; class Test { static void Main() { Action action = CreateAction(); action(); action(); } static Act...
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Code snippet or shortcut to create a constructor in Visual Studio

...nly shows the intellisense box, then I have to type Tab once to close that and once to "use" the snippet), but might be some setting somewhere... – Hans Olsson Oct 6 '10 at 16:02 1...
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PHP: How to send HTTP response code?

... I just found this question and thought it needs a more comprehensive answer: As of PHP 5.4 there are three methods to accomplish this: Assembling the response code on your own (PHP >= 4.0) The header() function has a special use-case that detects...
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mkdir -p functionality in Python [duplicate]

...ution other than a system call. I am sure the code is less than 20 lines, and I am wondering if someone has already written it? ...
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Set operations (union, intersection) on Swift array?

Are there any standard library calls I can use to either perform set operations on two arrays, or implement such logic myself (ideally as functionally and also efficiently as possible)? ...