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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.
There should be mention that you cannot change the list input as the same names list is used to check the answers i.e. answer uses names[0], names[1]
This makes sense as it is bad practice to edit a passed array but I don't believe it specifys that you cannot in the question