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Breadth First Vs Depth First
...would visit the nodes in this order
A, B, D, C, E, F
Notice that you go all the way down one leg before moving on.
A breadth first traversal would visit the node in this order
A, B, C, D, E, F
Here we work all the way across each level before going down.
(Note that there is some ambiguity in...
Rails ActiveRecord date between
...
I would personally created a scope to make it more readable and re-usable:
In you Comment.rb, you can define a scope:
scope :created_between, lambda {|start_date, end_date| where("created_at >= ? AND created_at <= ?", start_date, e...
Create an empty data.frame
I'm trying to initialize a data.frame without any rows. Basically, I want to specify the data types for each column and name them, but not have any rows created as a result.
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Difference between java.util.Random and java.security.SecureRandom
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The standard Oracle JDK 7 implementation uses what's called a Linear Congruential Generator to produce random values in java.util.Random.
Taken from java.util.Random source code (JDK 7u2), from a comment on the method protected int next(int bits), which is the one that genera...
To prevent a memory leak, the JDBC Driver has been forcibly unregistered
...s /lib. If you still keep it in webapp's /WEB-INF/lib, then you should manually register and deregister it using a ServletContextListener.
Downgrade to Tomcat 6.0.23 or older so that you will not be bothered with those warnings. But it will silently keep leaking memory. Not sure if that's good to kn...
Remove large .pack file created by git
...till get it back by accessing the history.
What you are looking to do is called rewriting history, and it involved the git filter-branch command.
GitHub has a good explanation of the issue on their site. https://help.github.com/articles/remove-sensitive-data
To answer your question more directly,...
Compare two List objects for equality, ignoring order [duplicate]
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If you want them to be really equal (i.e. the same items and the same number of each item), I think that the simplest solution is to sort before comparing:
Enumerable.SequenceEqual(list1.OrderBy(t => t), list2.OrderBy(t => t))
Edit:
Here is...
Processing Symbol Files in Xcode
I was wondering if anyone could tell me what Xcode is actually doing when it says: "Processing Symbol Files" after plugging in your device?
...
Is it possible to apply CSS to half of a character?
...cters
Preserves Text Accessibility for screen readers for the blind or visually
impaired
Part 1: Basic Solution
Demo: http://jsfiddle.net/arbel/pd9yB/1694/
This works on any dynamic text, or a single character, and is all automated. All you need to do is add a class on the target text and th...
How to enable assembly bind failure logging (Fusion) in .NET
.... Note I configured this in a clean environment where I didn't want to install SDKs and the like.
– Michhes
Jul 30 '10 at 2:21
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