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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.
Sure!
I've set up a visualization of the code on the link bellow.
Character Frequency Code Execution Visualization
Can someone explain me how does it work? I'm new.