Update README.md

kedebug · Sep 5, 2013 · 8e4ca61 · 8e4ca61
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@@ -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 [email protected].