Update README.md

kedebug · kedebug · commit 8e4ca61fbac7 · 2013-09-05T19:51:08.000+08:00
diff --git a/README.md b/README.md
@@ -9,3 +9,5 @@ The commit message of each problem stands for it's difficulty index, which means
 - 3 Medium
 - 4 Hard
 - 5 More Harder
+
+If you have found any method to optimize those solutions, please feel free to get in touch via sunweiqq@gmail.com.

-Original file line number
+Diff line change
 - 3 Medium
 - 4 Hard
 - 5 More Harder
++
 +If you have found any method to optimize those solutions, please feel free to get in touch via [email protected].