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@@ -968,7 +968,8 @@ Graphs can be used to represent many problems in computer science, so this secti
     - How is tail recursion better than not?
         - [ ] [What Is Tail Recursion Why Is It So Bad?](https://www.quora.com/What-is-tail-recursion-Why-is-it-so-bad)
         - [ ] [Tail Recursion (video)](https://www.coursera.org/lecture/programming-languages/tail-recursion-YZic1)
-
+	
+	[Backtracking Blueprint](https://leetcode.com/problems/combination-sum/discuss/16502/A-general-approach-to-backtracking-questions-in-Java-(Subsets-Permutations-Combination-Sum-Palindrome-Partitioning))
 - ### Dynamic Programming
     - You probably won't see any dynamic programming problems in your interview, but it's worth being able to recognize a 
     problem as being a candidate for dynamic programming.