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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.
Read this: https://docs.codewars.com/training/troubleshooting
Print the input, see why your code fails. Also note:
On random test in Ruby I get: Expected: 1, instead got: 4
Really no idea how to get help with this one. It works on the basic tests and on my machine. I see a lot of other people are also having similar problems, but I don't know if they've been fixed?