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How to prove that a problem is NP complete?

... | edited Jun 20 at 9:12 Community♦ 111 silver badge answered Nov 27 '10 at 23:11 ...
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Chrome extension: accessing localStorage in content script

... Update 2016: Google Chrome released the storage API: http://developer.chrome.com/extensions/storage.html It is pretty easy to use like the other Chrome APIs and you can use it from any page context within Chrome. // Save it using...
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What does “#define _GNU_SOURCE” imply?

...URCE, but you should avoid defining it and instead define _POSIX_C_SOURCE=200809L or _XOPEN_SOURCE=700 when possible to ensure that your programs are portable. In particular, the things from _GNU_SOURCE that you should never use are #2 and #4 above. ...
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Use of the MANIFEST.MF file in Java

... The content of the Manifest file in a JAR file created with version 1.0 of the Java Development Kit is the following. Manifest-Version: 1.0 All the entries are as name-value pairs. The name of a header is separated from its value by a colon. The default manifest shows that it conforms to ver...
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What's the difference between == and .equals in Scala?

... 204 You normally use ==, it routes to equals, except that it treats nulls properly. Reference equal...
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What's the difference between Invoke() and BeginInvoke()

... answered Oct 23 '08 at 12:40 Jon SkeetJon Skeet 1210k772772 gold badges85588558 silver badges88218821 bronze badges ...
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Access mysql remote database from command line

... 303 To directly login to a remote mysql console, use the below command: mysql -u {username} -p'{pa...
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Array Size (Length) in C#

... b.GetLength(dimensionIndex) will get the length of any given dimension (0-based indexing for the dimensions - so b.GetLength(0) is 3 and b.GetLength(1) is 5). See System.Array documentation for more info. As @Lucero points out in the comments, there is a concept of a "jagged array", which is re...
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C# Object Pooling Pattern implementation

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When to use cla(), clf() or close() for clearing a plot in matplotlib?

... | edited Jul 6 '18 at 2:08 spinkus 4,29411 gold badge2222 silver badges4646 bronze badges answered Nov...