-import Data.List (intercalate, intersperse)
+import Data.List ((\\), intercalate, intersperse)
import System.Exit (ExitCode(..), exitWith)
import System.IO (stderr, hPutStrLn)
Reduce -> do
mapM (putStrLn . show) (combine_all cidrs)
return ()
+ Dupe -> do
+ mapM (putStrLn . show) dupes
+ return ()
+ where
+ dupes = cidrs \\ (combine_all cidrs)