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9 lines
339 B
Text
9 lines
339 B
Text
module SumOfMultiples (..) where
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sumOfMultiples : List Int -> Int -> Int
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sumOfMultiples factors upperLimit =
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List.sum (List.filter (isMultipleOfAnyFactor factors) [1 .. (upperLimit - 1)])
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isMultipleOfAnyFactor : List Int -> Int -> Bool
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isMultipleOfAnyFactor factors candidate =
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List.any (\factor -> candidate % factor == 0) factors
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