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Best algorithm for detecting cycles in a directed graph [closed]
What is the most efficient algorithm for detecting all cycles within a directed graph?
14 Answers
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How to check iOS version?
...system version as an indication of device or OS capabilities. There is usually a more reliable method of checking whether a particular feature or class is available.
Checking for the presence of APIs:
For example, you can check if UIPopoverController is available on the current device using NSCla...
The Web Application Project […] is configured to use IIS. The Web server […] could not be found.
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When this happens the easiest solution is to make the virtual directory manually.
First of all, you need to make sure you have the right version of ASP.Net installed and that you have installed the IIS extensions.
To do this, go to the relevant .net version's folder in C:\(Windows)...
How to create a css rule for all elements except one class?
...t for my project. Is there any way I can create a css rule that applies to all table elements EXCEPT table elements belonging to the class "dojoxGrid"? Something like:
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How to indicate param is optional using inline JSDoc?
...ccording to the JSDoc wiki for @param you can indicate a @param is optional using
4 Answers
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How can I reverse a NSArray in Objective-C?
...ectEnumerator. Pretty neat way to do it.
– Brent Royal-Gordon
Feb 25 '09 at 15:34
4
Because C++-...
Making a Location object in Android with latitude and longitude values
I have a program in which latitude and longitude values of a location are stored in a database, which I download.
3 Answer...
Rails migrations: self.up and self.down versus change
... For example, in your case what is the reverse operation of add_column to call when you rollback? Of course it's remove_column. What is the inverse of create_table? It's drop_table. So in these cases rails know how to rollback and define a down method is superfluous (you can see in the documentation...
Load “Vanilla” Javascript Libraries into Node.js
There are some third party Javascript libraries that have some functionality I would like to use in a Node.js server. (Specifically I want to use a QuadTree javascript library that I found.) But these libraries are just straightforward .js files and not "Node.js libraries".
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SQL Server Management Studio won't let me add an index to a table
... "New Index" menu item is grayed out. I don't understand why. I've deleted all data in the table just in case, and refreshed and restarted SSMS, but no luck. I'm using SQL Server 2012 Business Intelligence SP1 CTP.
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