Implementation of Ruby arrays [closed] - ruby

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Python lists are implemented by CPython as amortized arrays. How are are Ruby arrays implemented, and for which implementations?
EDIT:
Partial answer here.

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Is there a way to apply Mahalanobis and Euclidean algorithms to this code? [closed]

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Excerpts can be found on https://www.kimbalite.com
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I've tried applying Kondu's algorithmic formulas, but it's just not working.

Calculate % of number in Scala programming [closed]

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How to do 50% of 120 in scala code..need proper syntax ,& runnable code for same.
Eg :
int k = (int)(120*(50.0f/100.0f));
This is in java need scala code for same.
The answer would be:
(120*(50.0f/100.0f)).toInt

What functions/algorithms produce O(n^2) time complexity? [closed]

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I'm learning about this in class and I'm really struggling to come up with any examples besides nested for loop. Can anyone share other known algorithms that have n^2 time complexity?

How does tabling improve efficiency? [closed]

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I am curious about how tabling works to improve efficiency of Prolog programs. How is it implemented? Both explanation and references are welcome.

How do I unwrap PLSQL? [closed]

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How do I unwrap PLSQL functions/procedures written in Oracle 9.2?

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