1 files changed, 1 insertions, 0 deletions
diff --git a/Puzzle3.hs b/Puzzle3.hs
index 0f6c55e..2cc560b 100644
--- a/Puzzle3.hs
+++ b/Puzzle3.hs
@@ -1,3 +1,4 @@
+-- Author: Yuchen Pei (me@ypei.me)
 import Data.Maybe (fromJust)
 import Data.List (elemIndex)
 import Control.Monad (liftM2)