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Negative weights using Dijkstra's Algorithm
I am trying to understand why Dijkstra's algorithm will not work with negative weights. Reading an example on Shortest Paths , I am trying to figure out the following scenario:
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Cross-browser window resize event - JavaScript / jQuery
...ethod for tapping into the window resize event that works in Firefox, WebKit , and Internet Explorer?
11 Answers
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Define: What is a HashSet?
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A HashSet holds a set of objects, but in a way that it allows you to easily and quickly determine whether an object is already in the set or not. It does so by internally managing an array and storing the object using an index which is calculated from the hashcode of the objec...
Advanced JavaScript: Why is this function wrapped in parentheses? [duplicate]
I came across this bit of JavaScript code, but I have no idea what to make out of it. Why do I get "1" when I run this code? What is this strange little appendix of (1) and why is the function wrapped in parentheses?
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Start ssh-agent on login
I have a site as a remote Git repo pulling from Bitbucket.com using an SSH alias. I can manually start the ssh-agent on my server but I have to do this every time I login via SSH.
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Cocoa Autolayout: content hugging vs content compression resistance priority
... Click Me ]
and you've pinned the edges to a larger superview with priority 500.
Then, if Hugging priority > 500 it'll look like this:
[Click Me]
If Hugging priority < 500 it'll look like this:
[ Click Me ]
If the superview now shrinks then, if the Compression Res...
SQLite Concurrent Access
Does SQLite3 safely handle concurrent access by multiple processes
reading/writing from the same DB? Are there any platform exceptions to that?
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Difference between abstraction and encapsulation?
...the calculation of the (Euclidean) distance between two points in a plane: it hides implementation details. This is encapsulation, pure and simple.
Abstraction is the process of generalisation: taking a concrete implementation and making it applicable to different, albeit somewhat related, types of ...
Smooth GPS data
I'm working with GPS data, getting values every second and displaying current position on a map. The problem is that sometimes (specially when accuracy is low) the values vary a lot, making the current position to "jump" between distant points in the map.
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Getter and Setter declaration in .NET [duplicate]
...e that validates the value in your setter:
set
{
if (string.IsNullOrWhiteSpace(value))
throw new ArgumentNullException();
_myProperty = value;
}
Properties can also have different accessors for the getter and the setter:
public string MyProperty { get; private set; }
This way ...