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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.
I agree, having more examples would help with decoding while not taking away from the problem.
I recently read that codewars frowns upon copying and pasting code when solving Katas. I've been coding in Jupyter Notebooks to test my work then copying it into codewars before testing/submitting. Does this affect my ranking? If so I will definitely start re-typing my code into codewars to avoid this.
what is the right data format? I know my logic is correct but it fails for n > 60