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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.
Yeah haha.
The variable names are extremely common, though I'd imagine some would choose
n
as opposed tox
for another common variation. Not all the code submitted is the same though -- you can use Show Variations feature to see the minor differences among submissions.