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Martin Thoma 2014-03-25 19:48:20 +01:00
parent 564dbc9790
commit bb674b307b
7 changed files with 44 additions and 1 deletions
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documents/Programmierparadigmen/scripts/haskell/binary-tree.hs Normal file
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data Tree a = Empty | Node a (Tree a) (Tree a)
deriving (Show)

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documents/Programmierparadigmen/scripts/haskell/function-composition.hs Normal file
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f x = x * x
g x = x - 1
h = (f . g)
i = (g . f)

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documents/Programmierparadigmen/scripts/haskell/general-tree.hs Normal file
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data Tree t = Node t[Tree t]

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documents/Programmierparadigmen/scripts/haskell/mapt.hs Normal file
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mapT :: (t -> s) -> Tree t -> Tree s
mapT f (Node x ts) = Node (f x) (map (mapT f) ts)
reduceT :: (t -> t -> t) -> Tree t -> t
reduceT f (Node x ts) = foldl f x (map (reduceT f) ts)