Congratulations !! If you are here, it means that you are attempting the awesome exercises. First off, I can guarantee that Scala for the Impatient
is one of the best programming language books I've ever read - it starts with a gentle introduction, gives adequate examples and has brilliant exercises. Even Martin Odersky acknowledges it himself in his Coursera lectures.
I have tried to solve the problems myself and for places where I found myself incapable or felt the answers insufficient, I referred the dirkraft/ScalaImpatient-AnswersAndNotes - so, if some answers are the same as from dirkraft, it is by no means coincidental. I should definitely thank the author for compiling all the exercise answers religiously.
This repo also has the notes
folder which has markdowns for each chapter. They are more or less verbatim extracts and examples from the book itself which I generally use for revising. As it stands now, I can't assure you that it is very helpful to everybody else.