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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.
You could, however, make an argument that the description is confusing. "rounded to the smallest value" here simply means "rounded down".
Please read again the description and fix your code.
Nope.
What will your solution return when you are 1 mile away from a pump, you have 2 gallons of fuel left, and your car can travel 100 miles on one gallon?