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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Nice use of guard. Shows of the understanding of 'do'
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Nice, functional style.
Next thing I'd like to see is this code using codepoints in a specific CodePointMap. ;-)
I would like to see your solution using a generic interface for data types implementing algebraic rings.
Using the good concepts on small problems might seem bloated, but is good training for good solutions for big problems.
Yes, there are much shorter solutions, but your solution is much more Java.
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