Re: [Haskell-cafe] Troubles with Exercise 4.9 from YAHT

2007/7/15, michael@schmong.org :

from YAHT

Exercise 4.9 Write a function elements which returns the elements in a BinaryTree .....

Any clues on how to proceed?

You have to use pattern-matching on the constructors of the BinaryTree, with a recursive function. Do you understand that ? -- Jedaï