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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.
Sorry, but no.
it isn't, lol
I know this is 6 months old, but it is timing out because the random tests give you really big numbers (in the millions) and a list comprehension is very resource expensive in that case.
Thanks