大约有 40,000 项符合查询结果(耗时:0.0444秒) [XML]

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What does O(log n) mean exactly?

...g that the size of the input affects the growth of the algorithm proportionally...and the same goes for, for example, quadratic time O(n2) etc..even algorithms, such as permutation generators, with O(n!) times, that grow by factorials. ...
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What is the correct way to create a single-instance WPF application?

...t the blog hasn't been updated in a while. That makes me worry that eventually it might disappear, and with it, the advocated solution. I'm reproducing the content of the article here for posterity. The words belong solely to the blog owner at Sanity Free Coding. Today I wanted to refactor so...
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How to convert an array into an object using stdClass() [duplicate]

..., 'varsta' => 25) ); If you want to see is this stdClass object just call this print_r($clasa); If you want to convert an array to object code will be $arr = array('a'=>'apple','b'=>'ball'); $arr = (object) $arr; You don't need to use stdClass. It will automatically converted to st...
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How do I specify different Layouts in the ASP.NET MVC 3 razor ViewStart file?

... One potential problem with LayoutInjecterAttribute: It is called before the controller's OnException method. So, if the controller provides a view result during exception handling, the layout won't be set. – Jeff Sharp Apr 21 '14 at 17:03 ...
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How to manually set an authenticated user in Spring Security / SpringMVC

After a new user submits a 'New account' form, I want to manually log that user in so they don't have to login on the subsequent page. ...
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How do you read from stdin?

I'm trying to do some of the code golf challenges, but they all require the input to be taken from stdin . How do I get that in Python? ...
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Run an Application in GDB Until an Exception Occurs

... a C++ exception. catch The catching of a C++ exception. exec A call to exec. This is currently only available for HP-UX. fork A call to fork. This is currently only available for HP-UX. vfork A call to vfork. This is currently only available for HP-UX. load or load libname ...
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What's the algorithm to calculate aspect ratio?

...re that's been changed from 16:9 to 5:4 - I still remember the incredibly tall, thin cowboys I used to watch in my youth on television before letter-boxing was introduced. You may be better off having one different image per aspect ratio and just resize the correct one for the actual screen dimensio...
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Linux: copy and create destination dir if it does not exist

... oops, right. But then, test may be a bash builtin (especially if written as [[ -d "$d" ]]) and mkdir can not ;-) – Michael Krelin - hacker Oct 7 '09 at 17:00 1 ...
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Entity Framework: One Database, Multiple DbContexts. Is this a bad idea? [closed]

...y single context in your application can do that. The trick for this is usually one additional context containing all your entities which is used only for database creation. Your real application contexts containing only subsets of your entities must have database initializer set to null. There are...