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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.
What I like about this solution is it fixed the inherent bug of Truthy vs Falsy and evaluates the actual input.
Suggestion
They should be crystal clear now, I modified the descriptiona and the test cases.
I might just say round to the next multiple of 5.
They look quite clear to me...
Expected results are a bit unclear from the description
Same problem.