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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.
Generally you should not post code without a spoiler tag. Anyway, this is not an issue. Note that over 17,000 coders have solved this kata. If you thought there was some problem, you should give a description of it with an example. Please read the error report from when you try to run your code to find out why it's broken. Cheers