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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.
how do i solve this kata from this screen?
This comment is hidden because it contains spoiler information about the solution
It's not an algorithm, but it's still programming, sure. This teaches you the dangers of using vanilla
to_lower
/to_upper
methods. This is something that comes back to bite a lot.