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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.
I just solved the kata in C++ and tests seem to be OK. I am going to close the issue as invalid, if you have any more details on what is the problem with the kata, then re-raise it.
the tests are wrong in the c++ implementation.
the last test always assumes that the return value is 1.