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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.
Ruby random tests are still incorrect. I submitted a solution yesterday and got errors for '11', '55', and '77'. My code returned false and the tests expected true.
Ruby tests are incorrect. The random tests expect 'Jumping!!' for numbers with identical digits. My first attempt failed '11', '55', and '77'.
According to the description, these are not jumping numbers. "Jumping number is the number that All adjacent digits in it differ by 1." None of these numbers' digits differ by 1.
The Ruby random test cases are incorrect. Every single test evaluates to an empty string.