1 files changed, 1 insertions, 0 deletions

diff --git a/Puzzle1.hs b/Puzzle1.hs
index dc39b61..15b21bd 100644
--- a/Puzzle1.hs
+++ b/Puzzle1.hs
@@ -1,3 +1,4 @@
+-- Author: Yuchen Pei (me@ypei.me)
 import Data.Char (digitToInt)
 
 solve1 :: [Char] -> Int