Leetcode: Lee215

 https://leetcode.com/lee215/

My hobby

I really love to practice hard level algorithms, and I also like to explore different ideas from top players, and then copy idea and write C# practice in less than 15 or 20 minutes for those hard level algorithms. My favorite players are Lee215 and a few others. When I have free time, I always like to try some new ideas, specially hard level, try at least three top voted discuss posts, and I really like to advance my C# coding skills.

I like to go over solutions written by Lee215 and then write down a few things to learn.