We are happy to announce that we're going to host a new contest at csacademy.com. Once again we'd like to thank all our users for the great feedback they provide. We try to listen to your advice and improve our platform with each competition.
Our Beta Round #4 will take place on Tuesday, Apr/26/2016 16:00 (UTC). If you want to take part in this round you need to register before the contest begins. You can access the chat room for this round here (login required). Initially we were planning on having two divisions starting with this round. After taking a closer look at the rankings we decided it's too early to separate our users. So this round will be a Div1 + Div2, with 3 easy tasks and 3 more challenging ones.
Platform changes since Beta Round #3:
- We have integrated our rating system and retroactively applied it to the previous three rounds. You can access the rankings here. For each round we considered only those users who submitted at least one solution. If you registered but didn't submit anything your rating should've been unaffected.
- We have created profile pages. Important: You need to have a username set in order to access your profile page. If you want to use your Codeforces handle you need to link your account in the account settings page.
- For those of you who linked your CF account we used our charts library to plot the CF rating. If you didn't link your account you can check out what it looks like here, under the "External profiles" tab. The charts support zoom and drag behaviours.
- We have added global chat rooms for the contests. The chat room will be available only before and after the round takes place. During the contest we will deactivate it.
- You will have to solve 6 tasks in 2 hours.
- There will be full feedback throughout the entire contest.
- Tasks will not have partial scoring, so you need to pass all test cases for a solution to count (ACM-ICPC-style).
- Tasks will have dynamic scores. According to the number of users that solve a problem the score will vary between 100 and 1000.
- Besides the score, each user will also get a penalty that is going to be used as a tie breaker.
About the penalty system:
- Computed using the following formula: the minute of the last accepted solution + the penalty for each solved task. The penalty for a solved task is equal to log2 (no_of_submissions) * 5.
- Solutions that don't compile or don't pass the example test cases are ignored.
- Once you solve a task you can still resubmit. All the following solutions will be ignored for both the score and the penalty.
We still recommend using an updated version of Google Chrome. If you find any bugs please email us at firstname.lastname@example.org
EDIT: The editorial is ready. Congratulations to all the users and we hope you had a great time. We are waiting for you at Beta Round #5.
LATER EDIT: We fixed the bug and updated the ratings