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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.
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Can you please provide a calculation example where he needs frieds? I´m not able to figure out the algorithm via the one example where he does not need friends. Thanks!
It is not clear enough, that m < n should lead to INVALID.
For example for me sumMult(8, 5) could also just return 0