According to its website, LeetCode Online Judge is a platform for preparing technical coding interviews, which supports various languages including Ruby.
This repo is a solution collection to the problems listed on the website.
I would like to consider these programming problems are like physical train for my programming muscles. And compare with Project Euler, these problems are more related to modern tech company interview, it might benifit my career as well.
At this moment, they are not good enough, there are many other repos have better quality and completion than mine, for example this. But I will work on it.
Simple, just make sure you have Ruby installed and run
bundle install
bundle exec rake test