As it's said in the coverpage, don't read this project unless you have problem understanding easy leetcode questions.
I don't think anyone would be so boring as to contribute a dummy project like this while there are 100K+ repos in gayhub with similar context. Github
You could help improve this repo by format:
I think your solution for problem xxx is like s***, you won't be able to pass 1st round of technical phone screen with such time & space complexity Java is BS, why don't you write solutions in Python