Hello, Codeforces!
On Thursday, September 3, 2026, at 6:00 PM Moscow time, the online Olympiad "OneProg Cup 3" will take place in the IOI format. You will be given 4 problems and 4 hours to solve them. Each problem carries a score of 0 to 100 points.
The problems were prepared by SergeevAmogus and OneProg.
The Olympiad will be held using the new ada-judge testing system, developed by OneProg. To learn more about ada-judge, we recommend reading the manual. It explains how to install the aj-app, which is required to participate in the Olympiad.
In the official results table, participants will be sorted by their total score for all four problems. The score for a problem is the maximum score for all submissions for that problem.
We are confident that the problems will be of interest to users with a rating of no more than 1700 on Codeforces, but if your rating is higher than 1700, you can still participate in this Olympiad.
We wish everyone good luck, and see you at the Olympiad!
