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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.
do it without calculating the factorial. it says that in the description
I'm pretty sure I've got the correct solution (one from the link attached) but it times out before it can complete, which seems weird
As a beginner, this was a good way to learn a very useful function, thanks!