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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.
Is there a way to make it O(n) without the use of regex?
When I compile and execute my solution on my PC, it works perfectly; however, for some reason, when I execute the same solution here, it gives an error and the it returns a different string with some extra characters... Does anyone know why?