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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.
Right, I wrote a solution for 1 object first, so I didn't really think about that at the time.
Also things like
Parameters&&(instead of possibleconst Parameters&) usually just ask forforward... I guess there could be use cases for non-const lvalue parameters, but if it's not within the scope of the kata, then maybeconst Parameters&would be better?