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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.
whole numbers, integers, and decimals, floats, are different kinds of numerical data. There is no need to worry about floats because that isnt the data being tested.
yeah should be defensive
integers do not involve decimals... what if someone kept a decimal as an argument.
what do you think about flooring the return value?