9 lines
382 B
Haskell
9 lines
382 B
Haskell
import Data.List
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main = do
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f <- readFile "./../Puzzels/Rosetta/inout.txt"
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let (ioo,dt) = unzip. map ((\(_:io:_:t:_)-> (io,t)). words) . lines $ f
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cio = drop 1 . scanl (\c io -> if io == "IN" then pred c else succ c) 0 $ ioo
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mo = maximum cio
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putStrLn $ "Maximum simultaneous license use is " ++ show mo ++ " at:"
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mapM_ (putStrLn . (dt!!)) . elemIndices mo $ cio
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