List rooted trees: Difference between revisions
Content added Content deleted
m (→{{header|Haskell}}: Tidying) |
m (→{{header|Haskell}}: (used foldTree)) |
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bracketsFromTree :: Tree a -> String |
bracketsFromTree :: Tree a -> String |
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bracketsFromTree = |
bracketsFromTree = foldTree (\_ xs -> '(' : (concat xs ++ ")")) |
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foldNest :: ([b] -> b) -> Tree a -> b |
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foldNest f = |
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let go (Node _ ts) = f (map go ts) |
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in go |
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main :: IO () |
main :: IO () |
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