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USACO Rating — A tool to estimate USACO Problems’ difficulties in terms of CF rating!

Revision en1, by codetiger927, 2021-05-24 02:50:41

Hi everyone, hope you’re having a good day~

You might have heard about USACO(USA Computing Olympiads) before. While it has many great problems, it's kinda hard to practice on USACO because there are few ways to estimate a problem's difficulty. As a USACO participant, I know the pain of attempting a question and only realizing after reading the editorial that it’s either too easy or too hard, wasting a precious problem.

Therefore, I bring to you USACO Rating! USACO Rating is a web application tool for estimating USACO problems’ difficulties in terms of CF ratings. There is also a quality metrics, so you can practice on only the most worthy problems, and avoid low-quality ones. The website is here:

We are also currently looking for more volunteers to better adjust the estimations through voting. If you’re interested, please check out

The project is also open source at So even if you don't really use USACO, you can freely modify this project and create a similar system for your country's CP olympiad :D! It is under the MIT License.

Hope you find it useful! And please contact me if you have any feedbacks <3

Tags #usaco


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en1 English codetiger927 2021-05-24 02:50:41 1516 Initial revision (published)