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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.
This should be marked "Puzzles" and not "Algorithms". It's completely underspecified.
aaaand now i'm super-glad i gave this one a pass.
This one lost me, zero interest. "Puzzles" like this where you're "let me begin by printing out all the test case data" are always bad IMHO.