Flatten a list: Difference between revisions

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 -- implemented as multiway tree:
--- since Data.Tree represents trees where nodes have values too,
+-- Data.Tree represents trees where nodes have values too, unlike the trees in our problem.
--- we use a list as that value, where a node will have an empty list value,
+-- so we use a list as that value, where a node will have an empty list value,
 -- and a leaf will have a one-element list value and no subtrees
 list :: Tree [Int]