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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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what is reverse() in Django
When I read django code sometimes, I see in some templates reverse() . I am not quite sure what this is but it is used together with HttpResponseRedirect. How and when is this reverse() supposed to be used?
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Generate a random double in a range
I have two doubles like the following
6 Answers
6
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How can I read input from the console using the Scanner class in Java?
How could I read input from the console using the Scanner class? Something like this:
15 Answers
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Function in JavaScript that can be called only once
I need to create a function which can be executed only once, in each time after the first it won't be executed. I know from C++ and Java about static variables that can do the work but I would like to know if there is a more elegant way to do this?
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event Action vs event EventHandler
Is there any different between declaring event Action<> and event EventHandler<> .
7 Answers
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Using try vs if in python
Is there a rationale to decide which one of try or if constructs to use, when testing variable to have a value?
9 Ans...
SQL variable to hold list of integers
I'm trying to debug someone else's SQL reports and have placed the underlying reports query into a query windows of SQL 2012.
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How to get back to most recent version in Git?
I have recently moved from SVN to Git and am a bit confused about something. I needed to run the previous version of a script through a debugger, so I did git checkout <previous version hash> and did what I needed to do.
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Loop through all the files with a specific extension
I want to loop through each file in the current folder and check if it matches a specific extension. The code above doesn't work, do you know why?
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