Leetcode Problem Rating Project

The project has been deployed to Github Pages.

Calculate the rating of the problems in leetcode weekly/biweekly contests based on Elo rating system as well as Maximum likelihood estimation. It is not a 100% accurate result, but sufficient for evaluating the relative difficulty of a problem.

All the data needed during calculation are obtained by web crawlers. In order not to violate any potential terms and regulations, I will NOT open-source the code. Moreover, as the APIs are different amongst contests, the result does not contain the problems in 1st-62nd weekly contests.

Please refer to ratings.txt for the raw data sorted in descending order. This will be updated every week after the contest(s).