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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.
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It checks if count is equal to 0 or not and then return true or false.
If count is superior to 0 at the end, it means there are too many parentheses.
This kata is useful for anyone trying to solve the kata "common denominators".
I would recommand anyone solving "Primes in numbers" to try "common denominators" next :)