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module FizzBuzz where | |
data Foo = Fizz | Buzz | FizzBuzz | Neither Int | |
instance Show Foo where | |
show Fizz = "Fizz" | |
show Buzz = "Buzz" | |
show FizzBuzz = "FizzBuzz" | |
show (Neither int) = show int | |
multOf3 :: Int -> Bool | |
multOf3 n = n `mod` 3 == 0 | |
multOf5 :: Int -> Bool | |
multOf5 n = n `mod` 5 == 0 | |
multOf3And5 :: Int -> Bool | |
multOf3And5 n = (multOf3 n) && (multOf5 n) | |
mkFoo :: Int -> Foo | |
mkFoo int | |
| multOf3And5 int = FizzBuzz | |
| multOf5 int = Buzz | |
| multOf3 int = Fizz | |
| otherwise = Neither int | |
program :: [Foo] | |
program = map mkFoo [1..100] | |
main = mapM_ print program | |
-- sequence (map (\x -> putStrLn (show $ mkFoo x)) [1..100]) | |
-- $ runhaskell FizzBuzz.hs | |
-- 1 | |
-- 2 | |
-- Fizz | |
-- 4 | |
-- Buzz | |
-- Fizz | |
-- 7 | |
-- 8 | |
-- Fizz | |
-- Buzz | |
-- 11 | |
-- Fizz | |
-- 13 | |
-- 14 | |
-- FizzBuzz | |
-- 16 | |
-- 17 | |
-- Fizz | |
-- 19 | |
-- Buzz | |
-- Fizz | |
-- 22 | |
-- 23 | |
-- Fizz | |
-- Buzz | |
-- 26 | |
-- Fizz | |
-- 28 | |
-- 29 | |
-- FizzBuzz | |
-- 31 | |
-- 32 | |
-- Fizz | |
-- 34 | |
-- Buzz | |
-- Fizz | |
-- 37 | |
-- 38 | |
-- Fizz | |
-- Buzz | |
-- 41 | |
-- Fizz | |
-- 43 | |
-- 44 | |
-- FizzBuzz | |
-- 46 | |
-- 47 | |
-- Fizz | |
-- 49 | |
-- Buzz | |
-- Fizz | |
-- 52 | |
-- 53 | |
-- Fizz | |
-- Buzz | |
-- 56 | |
-- Fizz | |
-- 58 | |
-- 59 | |
-- FizzBuzz | |
-- 61 | |
-- 62 | |
-- Fizz | |
-- 64 | |
-- Buzz | |
-- Fizz | |
-- 67 | |
-- 68 | |
-- Fizz | |
-- Buzz | |
-- 71 | |
-- Fizz | |
-- 73 | |
-- 74 | |
-- FizzBuzz | |
-- 76 | |
-- 77 | |
-- Fizz | |
-- 79 | |
-- Buzz | |
-- Fizz | |
-- 82 | |
-- 83 | |
-- Fizz | |
-- Buzz | |
-- 86 | |
-- Fizz | |
-- 88 | |
-- 89 | |
-- FizzBuzz | |
-- 91 | |
-- 92 | |
-- Fizz | |
-- 94 | |
-- Buzz | |
-- Fizz | |
-- 97 | |
-- 98 | |
-- Fizz | |
-- Buzz |
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