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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.
No sample tests
It won't let me submit, but I think my solution is correct. The description doesn't provide many details, though.
This comment is hidden because it contains spoiler information about the solution
Only one static test? Are you kidding?
Also, your reference solution will fail on ([1,2,3], [10,2,3]) because of sorting function.