22 lines
588 B
Haskell
22 lines
588 B
Haskell
takeUntilMax :: [Int] -> Int -> (Int, [Int])
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takeUntilMax [] m = (m, [])
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takeUntilMax [x] _ = (x, [x])
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takeUntilMax (x:xs) m
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| x == m = (x, [x])
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| otherwise =
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let (m', xs') = takeUntilMax xs m
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in (max m' x, x:xs')
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doTakeUntilMax :: [Int] -> [Int]
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doTakeUntilMax l = l'
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where (m, l') = takeUntilMax l m
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takeUntilMax' :: [Int] -> Int -> (Int, [Int])
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takeUntilMax' [] m = (m, [])
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takeUntilMax' [x] _ = (x, [x])
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takeUntilMax' (x:xs) m
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| x == m = (maximum (x:xs), [x])
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| otherwise =
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let (m', xs') = takeUntilMax' xs m
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in (max m' x, x:xs')
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