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Nao consigo resolver este problema


flashboy
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Com uma definição por compreensão defina a função scalarproduct :: [int] -> [int] -> Int que calcule o produto escalar de dois vectores x e y. Os vectores x e y são dados por listas de números.

> scalarproduct [1, 2, 3] [4, 5, 6]

32

apenas consigo fazer assim:

scalarproduct [] [] = 0

scalarproduct (x:xs) (y:ys) = x * y + scalarproduct xs ys

mas pedem com listas de compreensão, alguém dá uma ajudinha?

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