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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.
The translation needs random tests. The original kata has 50 times random tests.
First translation so not sure if I should be more descriptive with my test cases.
It is
set(a).intersection(b)This comment is hidden because it contains spoiler information about the solution