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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.
2 should simplify to 2, but simplified to 2, kekw
changed
theres an error on examples input/output. In case of 0 presents, should return 2.
But in the description, the first case input, 3 is the output. sorry for the english -.-
bad instructions
wow good to know