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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.
This is not most efficient, as you use ORDER BY 2 times, forcing db to sort rows twice.
Faster option would be creating CTE with ordered rows first and then use it as a source.
why be so extra?
me if I were lazy
Brute force but I like it :D
Yup, there are two colons in one of the test cases.
You can remove one from the test case to pass it.