Introduction
I was late for my mock interview 10:00 PM. I gave the interviewee to work on the algorithm called binary tree post order iterative.
Master the hard level tree algorithm
I had very good discussion with an engineer over 30 minutes on the algorithm. I learn more than 5 solutions to solve the algorithm.
I wrote one based on my favorite coding blog, the solution written in the comment.
Here is my discuss link.
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