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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.
It passes because tests for C++ have a bug.
How did this solution pass when it does not calculate area for a square?
My try at implementing the algorithm with a state machine