14 lines
431 B
Haskell
14 lines
431 B
Haskell
import Data.List.Split (splitOn)
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import Data.Graph (reachable, scc)
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import Data.Array (array)
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parseLine :: String -> (Int, [Int])
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parseLine str =
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let src : dests : [] = splitOn " <-> " str
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in (read src, map read $ splitOn ", " dests)
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main :: IO ()
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main = do
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graph <- fmap (array (0, 1999) . map parseLine . lines) $ readFile "12.txt"
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print $ length $ reachable graph 0
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print $ length $ scc graph |