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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.
It's clever for sure. But usually clever != best practice.
Don't convert the string to integer. You must find something by parsing the string (in one pass, I guess).
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Because with BigInt, the kata would not be 4 kyu.
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