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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.
Please learn how to write proper katas before writing one:
https://github.com/Codewars/codewars.com/wiki/Tutorial%3A-Create-Your-First-Kata
Duplicate of many
sum the arraykatas.Needs Random Tests.
Missing sample tests.