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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.
Haskell? The timing out isn't an issue, either your algorithm is too slow or Codewars is too busy. You can do the tests in less than 3000 ms in Haskell.
As for the tuple you can see in "Your solution" that the type for Haskell is:
listSquared :: Int -> Int -> [(Int, Int)]. The description is a general one for all languages... Problems to return an array of tuples instead of an array of arrays?Please tell me if you succeed or if you still time out.
Major issue - impossible to complete, due to submission timing out. Also, function returns a list of tuples, not a list of lists as it states in the description.