Leetcode 126: word ladder II

July 8, 2018

Introduction

It is the hard level algorithm called word ladder II. I wrote a few blogs in 2016, and I like to review my past practice, and also learn something new.

One of simplified algorithm is only to return one of the shortest transformation sequences.

Have a plan

I like to submit my code using Leetcode online judge this time. I did not submit any code back in 2016, even though I spent so many hours.

I like to check in the code I wrote in 2016 and put into github. I also like to read Leetcode discuss and find out ideas to write simple code this time. Here is C# code link.