Loading collection data...
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.
yes starting value of range() is 0 so defining it as 0 makes no difference.
Could be improved by caching the previous result and just multiplying it by 2 instead of calculating the whole 2^n.
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