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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.
No answer. Since TCAU says "good problem" I consider the issue as resolved.
Can we get some more details as to what is not working?
Thanks for your feedback!
It's not in the habit of Codewars to give the tests, sorry for that:-(
2nd test is absolutely ordinary, no edge case.
I don't see anything special in 2nd test! Maybe Codewars was too busy, it happens:-(