Introduction
It is an easy level tree algorithm. I like to work on the algorithm. It is hard for me to find time to write code today.
My practice
I spent over 60 minutes to write a solution. Here is my C# code.
The code can be simplified and then I wrote second version with less time. Here is C# code.
Leetcode discussion panel
I know that most of hard working people share their work on Leetcode discussion panel. I like to set a goal to share my practice as well. I like to track how quick I can learn from the community. Here is my sharing.
