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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.
really clever, well done!
deque in this situation is miles faster than normal lists
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You're right. I agree. Thanks for your comment.
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This comment is hidden because it contains spoiler information about the solution
I can't spot how this handling the no-duplicates condition ?
Excellent code!
Thanks!
brilliant
Heh wow didn't think of it this way.