Created
January 3, 2013 21:49
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haskell - tree insert
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singleton :: a -> Tree a | |
singleton x = Node x EmptyTree EmptyTree | |
treeInsert :: (Ord a) => a -> Tree a -> Tree a | |
treeInsert x EmptyTree = singleton x | |
treeInsert x (Node a left right) | |
| x == a = Node x left right | |
| x < a = Node a (treeInsert x left) right | |
| x > a = Node a left (treeInsert x right) |
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