Last active
June 27, 2019 22:41
-
-
Save pietroluongo/885a6c3885ca8a49b6770704e54d2ca5 to your computer and use it in GitHub Desktop.
Lista de Haskell, ato II
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| -- Monads https://medium.com/@julianoalves/functors-applicatives-e-monads-explicados-com-desenhos-2c45d5db7d25 | |
| data Arv a = Vazia | Node a (Arv a) (Arv a) deriving (Eq, Show, Read) | |
| instance Functor Arv where | |
| fmap f Vazia = Vazia | |
| fmap f (Node a l r) = Node (f a) (fmap f l) (fmap f r) | |
| singleton :: a -> Arv a | |
| singleton a = Node a Vazia Vazia | |
| insere :: (Ord a) => a -> Arv a -> Arv a | |
| insere x Vazia = singleton x | |
| insere x (Node a l r) | |
| | x == a = Node x l r | |
| | x < a = Node a (insere x l) r | |
| | x > a = Node a l (insere x r) | |
| criar :: (Ord a) => [a] -> Arv a | |
| criar xs = foldr insere Vazia xs | |
| buscar :: (Ord a) => a -> Arv a -> Bool | |
| buscar _ Vazia = False | |
| buscar x (Node a l r) | |
| | x == a = True | |
| | x < a = buscar x l | |
| | x > a = buscar x r | |
| data Fila a = Empty | Fila a (Fila a) deriving (Show) | |
| vazia :: Fila a | |
| vazia = Empty | |
| -- inserir :: (Maybe a) => a -> Fila a -> Fila a | |
| insereInicio a Empty = Fila (a) (Empty) | |
| insereInicio a (Fila x y) = Fila (a) (Fila x y) | |
| insereFinal a Empty = Fila (Empty) (a) | |
| insereFinal a (Fila x y) = Fila (Fila x y) a |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment