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What are the differences between NP, NP-Complete and NP-Hard?
... the technical definitions require quite some time to understand. First of all, let's remember a preliminary needed concept to understand those definitions.
Decision problem: A problem with a yes or no answer.
Now, let us define those complexity classes.
P
P is a complexity class that repres...
What is the correct way to create a single-instance WPF application?
...N actually has a sample application for both C# and VB to do exactly this: http://msdn.microsoft.com/en-us/library/ms771662(v=VS.90).aspx
The most common and reliable technique
for developing single-instance
detection is to use the Microsoft .NET
Framework remoting infrastructure
(System...
Overcoming “Display forbidden by X-Frame-Options”
...g the full url use the embed url from the share options. It will look like http://www.youtube.com/embed/eCfDxZxTBW4
You may also replace watch?v= with embed/ so http://www.youtube.com/watch?v=eCfDxZxTBW4 becomes http://www.youtube.com/embed/eCfDxZxTBW4
...
map function for objects (instead of arrays)
...
There is no need to add an extra HTTP call and an extra library just for one function. In any case, this answer is now outdated and you can simply call Object.entries({a: 1, b: 2, c: 3}) to get an array.
– user6269864
O...
How to connect android emulator to the internet
...C: Missing emulator engine program for 'x86' CPU.”, then please refer to https://stackoverflow.com/a/49511666 to update your bash environment.
Operating System : Mac OS X El Capitan
IDE : Android Studio 2.2
For some reasons, I wasn't able to access internet through my AVD at work (probably proxy o...
Standardize data columns in R
...ter", "scale"))
newData <- predict(preObj, data[, -10])
More details: http://www.inside-r.org/node/86978
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Search for all files in project containing the text 'querystring' in Eclipse
...This may depend on your keyboard accelerator configuration.
More details: http://www.ehow.com/how_4742705_file-eclipse.html and http://www.avajava.com/tutorials/lessons/how-do-i-do-a-find-and-replace-in-multiple-files-in-eclipse.html
(source: avajava.com)
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Why is “import *” bad?
...
http://docs.python.org/tutorial/modules.html
Note that in general the practice of importing * from a module or package is frowned upon, since it often causes poorly readable code.
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Sequence contains no matching element
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
ZSH complains about RVM __rvm_cleanse_variables: function definition file not found
...better than creating the files and deleting them at every login.
(source: http://www.csse.uwa.edu.au/programming/linux/zsh-doc/zsh_23.html)
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