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Negative weights using Dijkstra's Algorithm
...u have suggested will indeed find the shortest path in this graph, but not all graphs in general. For example, consider this graph:
Assume the edges are directed from left to right as in your example,
Your algorithm will work as follows:
First, you set d(A) to zero and the other distances to ...
How do you handle multiple submit buttons in ASP.NET MVC Framework?
...e submit button issue based heavily on the post and comments from Maarten Balliauw.
[AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public class MultipleButtonAttribute : ActionNameSelectorAttribute
{
public string Name { get; set; }
public string Argument...
What is the best way to paginate results in SQL Server
...E OrderDate >= '1980-01-01'
...which may seem inefficient, but is actually pretty performant, assuming all indexes etc. are properly set up.
Next, to get actual results back in a paged fashion, the following query would be most efficient:
SELECT *
FROM ( SELECT ROW_NUMBER() OVER ( ORDE...
How to write trycatch in R
...rn value in case of warning
return(NULL)
},
finally={
# NOTE:
# Here goes everything that should be executed at the end,
# regardless of success or error.
# If you want more than one expression to be executed, then you
# need to wr...
Best way to split string into lines
...
If it looks ugly, just remove the unnecessary ToCharArray call.
If you want to split by either \n or \r, you've got two options:
Use an array literal – but this will give you empty lines for Windows-style line endings \r\n:
var result = text.Split(new [] { '\r', '\n' });
Use a...
How do you implement a good profanity filter?
...user input, search queries, and situations where the input text can potentially contain profanity or undesirable language. Oftentimes this needs to be filtered out.
...
Deserializing a JSON into a JavaScript object
...t rigorous in its JSON encoding,
or if it does not scrupulously validate all of its inputs,
then it could deliver invalid JSON text that could be carrying dangerous script.
The eval function would execute the script, unleashing its malice.
...
Android Studio Editor Font Sizing
...
They didn't make this very obvious, did they?
All you have to do is click the "Save As" button to create a new profile. You can't change the font because you can't overwrite the default profiles.
...
Merge multiple lines (two blocks) in Vim
...
You can certainly do all this with a single copy/paste (using block-mode selection), but I'm guessing that's not what you want.
If you want to do this with just Ex commands
:5,8del | let l=split(@") | 1,4s/$/\=remove(l,0)/
will transform
wor...
What is the optimal Jewish toenail cutting algorithm?
I am working on the software for a machine that will automatically trim toenails, so that users can simply put their feet in it and run it instead of having to manually do it by biting them or using nail clippers.
...