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.
Thank you! I'll check this as soon as I get home.
I think you're mutating the input list, don't do that.
I've solved it (just to check it) and tests worked fine for me.
I believe this doesn't work for Python. Text says to always keep the first element. Tests say first element should be removed.
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Same problem here.
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