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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.
thank you for all your comments.
what do you mean?
omg. it should be just simple kata for beginers. People who know such approaches should not even look to this kata. But you are right. I had to try harder :)
yes, you are right. I missed it.
very nice solution.
but what about code readability?