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Why is '+' not understood by Python sets?
... as set difference. You can also use ^ for symmetric set difference (i.e., it will return a new set with only the objects that appear in one set but do not appear in both sets).
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What is the difference between trie and radix trie data structures?
...adix tree is a compressed version of a trie. In a trie, on each edge you write a single letter, while in a PATRICIA tree (or radix tree) you store whole words.
Now, assume you have the words hello, hat and have. To store them in a trie, it would look like:
e - l - l - o
/
h - a - t
\
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count (non-blank) lines-of-code in bash
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edited Sep 22 '08 at 13:37
answered Sep 22 '08 at 13:23
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How do I assert equality on two classes without an equals method?
Say I have a class with no equals() method, to which do not have the source. I want to assert equality on two instances of that class.
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How to fix org.hibernate.LazyInitializationException - could not initialize proxy - no Session
...your session management configuration is set to close session when you commit transaction. Check if you have something like:
<property name="current_session_context_class">thread</property>
in your configuration.
In order to overcome this problem you could change the configuration of...
Insert spaces between words on a camel-cased token [duplicate]
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See: .NET - How can you split a "caps" delimited string into an array?
Especially:
Regex.Replace("ThisIsMyCapsDelimitedString", "(\\B[A-Z])", " $1")
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Add Bootstrap Glyphicon to Input Box
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Without Bootstrap:
We'll get to Bootstrap in a second, but here's the fundamental CSS concepts in play in order to do this yourself. As beard of prey points out, you can do this with CSS by absolutely positioning the icon in...
setResult does not work when BACK button pressed
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edited Jul 17 at 14:52
Bruno Bieri
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Map over object preserving keys
The map function in underscore.js, if called with a javascript object, returns an array of values mapped from the object's values.
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Converting from Integer, to BigInteger
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edited Nov 1 '12 at 22:21
answered Oct 7 '10 at 2:09
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