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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.
There should be tests with
\ns or it should be specified that there's always 1 line.Keep in mind that the standard practice on Codewars is to test values returned by (ideally pure) functions, and that it has plenty of facilities to do so. In contrast, an I/O-based Kata is rather counter-intuitive.