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