Case study: hard level algorithm my post ranks top 7

Oct. 9, 2019

Introduction

It is the time for me to review my achievements. I did not get really big progress in terms of problem solving in 2019. I did get back into stock market, and put my 401 K and IRA back into stock market this April, and I went to onsite interview from Fortinet in May, and then prepared onsite for Amazon and Facebook in August, I had phone screen from Docusign in September. I learn slowly to adapt the challenge to advance myself. Today I like to talk about something new, my post ranks top 7 - a hard level algorithm.

Case study

I did not notice that I wrote a post, since I did not add it to my github repository Leetcode page six month ago.

Here is the image to show my ranking.

Here is the link.

How to write an excellent post?

I think that it is not difficult to write an excellent post. The algorithm I studied is so easy to understand, since I put together some comment to make it so straightforward.

And also I did spend time to save a graph from weekly contest lead board, and then wrote down my observation.

It is so important for me to learn how to document good learning process for other players.

Being a good mentor, helper, or player, I strive to document my practice, my learning, and then I have chance to meet more people in the world. I do believe that it takes so much time for me to learn and master one algorithm. I also certainly like to see people advance skills quickly. I always like to be one of players, share and learn, learn and then share.

1012 Numbers with repeated digits

Oct. 8, 2019

Introduction

It is so surprise for me to read my own post over six months ago. There is a notification since one comment was added recently. I lost track on this algorithm on my github Leetcode repository page. 

One algorithm with 4 upvotes

I was so surprised to learn that I got 4 upvotes on this algorithm. It is such good learning experience for me to learn to write a good post. I like to write the solution again when I have 10 - 15 minutes break. 

March 21, 2019
1012. Numbers With Repeated Digits C# Study code from ranking No. 1 in weekly contest 128 (4 upvotes up to Oct. 8, 2019)
1012. Numbers With Repeated Digits C# standard depth first search with back tracking (1 upvotes up to Oct. 8, 2019)

Ranking board of discussion post

Here is the ranking based on number of upvote. It is a hard level algorithm. I wrote a post and then explained the top ranking weekly contest 128 No. 1, how his solution works and I wrote a C# solution with explanaton. Life is so interesting, I totally forgot what I did until some one left a comment on Oct. 8, 2019.