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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Long-year/Haskell/long-year.hs Normal file
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import Data.Time.Calendar (fromGregorian)
import Data.Time.Calendar.WeekDate (toWeekDate)
longYear :: Integer -> Bool
longYear y =
let (_, w, _) = toWeekDate $ fromGregorian y 12 28
in 52 < w
main :: IO ()
main = mapM_ print $ filter longYear [2000 .. 2100]