solutions block 4
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import System.IO
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main :: IO()
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main = putStrLn "Hello World"
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import qualified Data.List (nub,sort, reverse)
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uniqueReverseList :: (Eq a, Ord a) => [a] -> [a]
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uniqueReverseList list = Data.List.reverse (Data.List.sort (Data.List.nub list))
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main :: IO ()
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main = do
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let x = uniqueReverseList [2,1,13,1,27,71,59,43] == [71,59,43,27,13,2,1]
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let y = uniqueReverseList "abcde" == "edcba"
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if x == y
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then putStrLn "Funktion funktioniert"
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else putStrLn "Funktion funktioniert nicht"
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--Schreibe ein Modul welches Funktionen zur berechnung der Volumen von
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--Kugel, Würfel, Pyramide und Zylinder enthällt
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--Grundgerüst
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module Volumenberechnung
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( kugel
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, wuerfel
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, pyramide
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, zylinder
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) where
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--Funktionen
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--Kugel
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kugel :: (Floating a)=> a -> a
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kugel radius = (4/3) * pi * radius ^ 3
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--Würfel
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wuerfel :: (Floating a) => a -> a
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wuerfel kantenlaenge = kantenlaenge ^ 3
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--Pyramide
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pyramide :: (Floating a) => a -> a -> a -> a
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pyramide laenge breite hoehe = 1/3 * laenge * breite * hoehe
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--Zylinder
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zylinder :: (Floating a) => a -> a -> a
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zylinder radius hoehe = pi * radius ^ 2 * hoehe
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@ -0,0 +1,15 @@
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import System.IO
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reverseWords :: String -> String
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--reverseWords = unwords . map reverse . words
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--obige Zeile ist die kurzschreibweise mit der Punktnotation
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reverseWords message = unwords (map reverse (words message))
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main :: IO ()
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main = do
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line <- getLine
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if null line
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then return ()
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else do
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putStrLn $ reverseWords line
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main
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