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Definition of a Balanced Tree

I am just wondering if someone might be able to clarify the definition of a balanced tree for me. I have that "a tree is balanced if each sub-tree is balanced and the height of the two sub-trees differ by at most one. ...
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jQuery find element by data attribute value

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jQuery: checking if the value of a field is null (empty)

Is this a good way to check if the value of a field is null ? 7 Answers 7 ...
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List of encodings that Node.js supports

I need to read a file which is encoded with ISO-8859-1 (also called latin1), something like this: 2 Answers ...
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C# short/long/int literal format?

In C / C# / etc. you can tell the compiler that a literal number is not what it appears to be (ie., float instead of double , unsigned long instead of int : ...
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How to define different dependencies for different product flavors

I am converting one of my apps to Gradle and would like to use the new build flavor features to have a paid and a free ad based flavor. ...
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How do I make a transparent canvas in html5?

How can I make a canvas transparent? I need to because I want to put two canvases on top of one another. 6 Answers ...
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Regex to remove all (non numeric OR period)

...e ($3,004.50)" to be filtered down to 3004.50 but am terrible at regex and can't find a suitable solution. So only numbers and periods should stay - everything else filtered. I use C# and VS.net 2008 framework 3.5 ...
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How to position a DIV in a specific coordinates?

I want to position a DIV in a specific coordinates ? How can I do that using Javascript ? 6 Answers ...
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How to sort a dataFrame in python pandas by two or more columns?

Suppose I have a dataframe with columns a , b and c , I want to sort the dataframe by column b in ascending order, and by column c in descending order, how do I do this? ...