Update cheatsheet.md

8 years ago · a4a89c0efc
parent a667bcc722
commit a4a89c0efc
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--- a/preparing/cheatsheet.md
+++ b/preparing/cheatsheet.md
@ -5,6 +5,11 @@ This is a straight-to-the-point distilled list of technical interview Do's and D

 For a detailed walkthrough of interview preparation, refer to the ["Preparing for a Coding Interview"](./) section.

+Legend: 
+✅ = DO
+❌ = DONT
+⚠️ = OPTIONAL
+
 ### 1. Before Interview

 || Things |