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Representing and solving a maze given an image
What is the best way to represent and solve a maze given an image?
10 Answers
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AngularJS: Understanding design pattern
In the context of this post by Igor Minar, lead of AngularJS:
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Why is Double.MIN_VALUE in not negative
Can anyone shed some light on why Double.MIN_VALUE is not actually the minimum value that Doubles can take? It is a positive value, and a Double can of course be negative.
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What is the fastest way to check if a class has a function defined?
I'm writing an AI state space search algorithm, and I have a generic class which can be used to quickly implement a search algorithm. A subclass would define the necessary operations, and the algorithm does the rest.
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With Mercurial, how can I “compress” a series of changesets into one before pushing?
Let's say I have a local and a remote Mercurial repository. Now, I start working on a feature. I work on it, and when I think it's done, I commit the changeset. Testing it a bit more, I find that I could further improve this feature by tweaking something in the code. I make the change and commit. 20...
Why is creating a new process more expensive on Windows than Linux?
I've heard that creating a new process on a Windows box is more expensive than on Linux. Is this true? Can somebody explain the technical reasons for why it's more expensive and provide any historical reasons for the design decisions behind those reasons?
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select * vs select column
If I just need 2/3 columns and I query SELECT * instead of providing those columns in select query, is there any performance degradation regarding more/less I/O or memory?
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Difference between Control Template and DataTemplate in WPF
What is difference between a ControlTemplate and a DataTemplate in WPF?
7 Answers
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How to sort a dataframe by multiple column(s)
I want to sort a data.frame by multiple columns. For example, with the data.frame below I would like to sort by column z (descending) then by column b (ascending):
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Remove a marker from a GoogleMap
In the new Google Maps API for Android, we can add a marker , but there is no way to (easily) remove one.
11 Answers
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