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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.
i do not use any type applications, but for convienience i implement some prelude function such as catMaybeS and so on. is that affect?
Have you use type application?
After removing type applications, I pass all the tests.
Failed to parse solution for "do not use implemented Prelude" test, got messsage:
But I really cannot findout which function in my code is the 'implemented Prelude', can we provide more specific limits?
besides, here is the Prelude functions I used: