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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.
Yes, but array sizes are quite small in test cases, so creating additional structures can be less productive in this specific case.
This code has O(n*m) runtime as for each element we have to re-scan in b from scratch.
%has more priority than-so you have an extra parenthesis