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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.
Please read https://docs.codewars.com/training/troubleshooting
not an issue
having problem with the tests in cpp, keep getting exit code 139 when i return the results. Works fine on my system's compiler.