Day eleven

day-11-haskell/app/Main.hs

@@ -0,0 +1,16 @@
+module Main (main) where
+
+import System.Environment.Blank ( getArgs )
+import Lib (task1, task2)
+
+main :: IO ()
+main = do
+  args <- getArgs
+  case args of
+    ["1", file] -> do
+      input <- readFile file
+      print $ task1 input
+    ["2", file] -> do
+      input <- readFile file
+      print $ task2 input
+    _ -> error "Usage: <1|2> <input file>"