23 lines
515 B
Haskell
23 lines
515 B
Haskell
import Data.List
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main :: IO ()
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main = readFile "1/input.txt" >>= print . solve . parse . lines
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parse :: [String] -> [Int]
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parse = map read
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solve :: [Int] -> (Int, Int)
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solve input = (f input, g input)
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where f = countInc
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g = countInc . map sum . slide 3
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countInc :: [Int] -> Int
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countInc (a : rest @ (b : _))
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| a < b = countInc rest + 1
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| otherwise = countInc rest
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countInc _ = 0
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slide :: Int -> [Int] -> [[Int]]
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slide _ [] = []
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slide n list = take n list : slide n (tail list)
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