What If I Never Brick? — A web application that predicts your optimal Codeforces rating

Правка en14, от wyhong3103, 2023-06-20 04:29:54

Hello Codeforces,

I wanted to share with you a web application I recently developed. The application filters out unsuccessful contests you have participated in on Codeforces and predicts your rating today based on only the optimal contests. The primary purpose of this web application is to help users discover their true potential, serving as a source of inspiration and motivation to empower them to persevere in their endeavors. Initially, my idea was to greedily select contests that have a positive delta based on the current rating, using the rating formula mentioned in this blog post. However, due to slow API calls, I was almost ready to give up on the project. Nevertheless, I decided to proceed for the sake of completeness.

To my surprise, when I completed the application, I found the results to be quite interesting. Additionally, I added a mode that computes the rating using a simple O(1) formula: $$$ delta = (performance - rating) / 4 $$$. I found that not only did this computation take less time, but the results were also convincing.

I thought it would be valuable to share this application with you, as it may provide insights and assistance to Codeforces users in predicting their ratings based on their contest performances.

Without further ado, let me introduce you to

What If I Never Brick

To use the application:

  1. Enter the website.
  2. Enter your Codeforces handle.
  3. Select a calculation mode: either "Fast" or "Slow".
    • The fast mode is incredibly fast because it fetches only the necessary data, which includes your rating changes in every contest, in a single API call.
    • The slow mode takes more time as it needs to fetch all the contest data you have participated in, and each API call takes 2 seconds
  4. Click on the "GO" button and wait for the result.


Thank you for your time.

If you have any further questions or suggestions about this application, please feel free to leave a comment or reach out to me via Codeforces.

Also, feel free to contribute, this is the link to the GitHub Repository.

UPD: Rating restrictions have been added for each division. You will be eligible for Div 2 if and only if your rating is less than 2100 (The same applies to Div 2 which is rated for participants < 1900). Similarly, Div 3 is only rated for those with a rating below 1600, and Div 4 is only rated for participants with a rating below 1400.

Теги codeforces, rating, predict, motivation

История

 
 
 
 
Правки
 
 
  Rev. Язык Кто Когда Δ Комментарий
en17 Английский wyhong3103 2023-06-25 06:53:12 237
en16 Английский wyhong3103 2023-06-22 10:47:52 180 Tiny change: ' added to slow mode' -> ' added to the slow mode'
en15 Английский wyhong3103 2023-06-20 20:44:55 436 Tiny change: 'itory.\n\n~~**UPD**: Rating res' -> 'itory.\n\n**UPD**: ~~Rating res'
en14 Английский wyhong3103 2023-06-20 04:29:54 347 Tiny change: 'itory.\n\nUPD: Rating r' -> 'itory.\n\n**UPD**: Rating r'
en13 Английский wyhong3103 2023-06-19 19:11:34 0 (published)
en12 Английский wyhong3103 2023-06-19 18:50:05 75
en11 Английский wyhong3103 2023-06-19 18:35:51 193
en10 Английский wyhong3103 2023-06-19 18:28:33 65
en9 Английский wyhong3103 2023-06-19 18:22:04 19 Tiny change: 'l free to reach out' -> 'l free to leave a comment or reach out'
en8 Английский wyhong3103 2023-06-19 18:21:40 20 Tiny change: 'Codeforces or Discord (.stax.).\n\nAlso,' -> 'Codeforces.\n\nAlso,'
en7 Английский wyhong3103 2023-06-19 18:21:14 76
en6 Английский wyhong3103 2023-06-19 18:19:58 522 Tiny change: 'odeforces OR Discord (' -> 'odeforces or Discord ('
en5 Английский wyhong3103 2023-06-19 18:10:54 40 Tiny change: 'ult. </li>\n</ol>\n\n<' -> 'ult. </li></ol>\n\n<'
en4 Английский wyhong3103 2023-06-19 18:07:30 65
en3 Английский wyhong3103 2023-06-19 18:04:54 622 Tiny change: 'g" width="200px">\n</' -> 'g" width="300px">\n</'
en2 Английский wyhong3103 2023-06-19 17:24:59 1004
en1 Английский wyhong3103 2023-06-19 17:17:40 365 Initial revision (saved to drafts)