大约有 15,461 项符合查询结果(耗时:0.0300秒) [XML]

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Which is the fastest algorithm to find prime numbers?

Which is the fastest algorithm to find out prime numbers using C++? I have used sieve's algorithm but I still want it to be faster! ...
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What is more efficient? Using pow to square or just multiply it with itself?

... I tested the performance difference between x*x*... vs pow(x,i) for small i using this code: #include <cstdlib> #include <cmath> #include <boost/date_time/posix_time/posix_time.hpp> inline boost::posix_time:...
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How to use GROUP_CONCAT in a CONCAT in MySQL

... Try: CREATE TABLE test ( ID INTEGER, NAME VARCHAR (50), VALUE INTEGER ); INSERT INTO test VALUES (1, 'A', 4); INSERT INTO test VALUES (1, 'A', 5); INSERT INTO test VALUES (1, 'B', 8); INSERT INTO test VALUES (2, 'C', 9); SELECT ID, GRO...
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Test if element is present using Selenium WebDriver?

Is there a way how to test if an element is present? Any findElement method would end in an exception, but that is not what I want, because it can be that an element is not present and that is okay, that is not a fail of the test, so an exception can not be the solution. ...
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How to mock localStorage in JavaScript unit tests?

... store = {}; }); }); If you want to mock the local storage in all your tests, declare the beforeEach() function shown above in the global scope of your tests (the usual place is a specHelper.js script). share | ...
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Unit testing with Spring Security

...vironment: session-scoped in a Servlet container, thread-scoped in a JUnit test, etc. The real limiting factor of a Singleton is when it provides an implementation that is inflexible to different environments. share ...
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Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari

...al machine is more impressive than Google's Dalvik used in Android. I have tested it with HTC Flyer and Acer Iconia Tab tablets to benchmark the C# port of Android through Mono against Java Dalvik, with the C# implementation of Android well and truly trouncing the Java-based Dalvik. ...
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How to properly use unit-testing's assertRaises() with NoneType objects? [duplicate]

I did a simple test case: 4 Answers 4 ...
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Changing CSS Values with Javascript

...tylesheets on the page. The following script works with IE5.5 as well as latest Google Chrome, and adds only the above described css() function. (function (scope) { // Create a new stylesheet in the bottom // of <head>, where the css rules will go var style = document.createElemen...
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How to Test Facebook Connect Locally

...run the app and press Connect button it's return to the Website not to the test local server which is ( http://localhost:xxxx/test.aspx ) So how I can test Facebook locally (i.e How I can change the callback url) ? ...