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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.
Did you know: you can provide an optional second argument to
reduceas the initial value?This is only a problem if you do not provide it.
improve your algorithm and try again ;-)