Leetcode 54: Spiral matrix - based on directions

Feb. 9, 2018

Introduction

I keep learning the spiral matrix algorithm through Leetcode discussion, and then I came cross the discussion of Leetcode solution based on the directions.

Here is the discussion note I like to share. I read carefully about the analysis and then write down and make some modification, so I can follow closely the thinking process of the author.

Analysis based on directions

I like to go over the discussion here as well. Here is the C# code. Also I like to add this solution to the question I asked on stackexchange.com so that I can get some feedback later on.