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HASKELL TREE QUESTION: write and test a function sizeTree :: Tree a b -> Int that...

HASKELL TREE QUESTION:

write and test a function

sizeTree :: Tree a b -> Int

that counts the total number of nodes and leaves in its argument.

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Answer #1

Answer:

The Haskell function that generates all binary trees with empty leaves is given as below:

generateAllTrees input = do
(left, value : right) <- splits input
Node <$> generateAllTrees left <*> pure value <*> generateAllTrees right

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