17 lines
560 B
Haskell
17 lines
560 B
Haskell
module Part1 where
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import Commons
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import Data.Char (isDigit)
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getCalibrationValuePart :: CalibrationLine -> Char
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getCalibrationValuePart (h: _) | isDigit h = h
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getCalibrationValuePart (_: t) = getCalibrationValuePart t
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getCalibrationValue :: CalibrationLine -> Integer
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getCalibrationValue line = read [getCalibrationValuePart line, getCalibrationValuePart (reverse line)]
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getCalibrationValues :: CalibrationDocument -> [Integer]
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getCalibrationValues [h] = [getCalibrationValue h]
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getCalibrationValues (h: t) = getCalibrationValue h: getCalibrationValues t
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