Virtual Competition Logistics
Everything you need to know about participating in the Fall 2025 PHS Computing Olympiad.
Competition Schedule
Date: October 25th, 2025
Time: All times listed in Eastern Standard Time (EST)
Practice Submission
Practice submitting on the Codeforces platform, join the Codeforces group, and prepare for the competition.
Competition Begins
The problems are revealed and code submissions are opened.
Leaderboard Freezes
Leaderboard frozen until the awards ceremony. Don't give up until the end!
Competition Ends
Code submissions close and final scores are tallied. Keep your email open!
Results & Awards
Final results are announced & awards are given.
Contact Support
Our support team will be available prior to and during the competition to assist with any issues.
We will try to respond to every request we receive within a day; please be patient and do not submit multiple requests for the same issue.
Technical Requirements
Device
A desktop or laptop computer with the ability to access the internet. Chromebooks are supported, but it is recommended to use a Windows/Mac/Linux/etc. if possible.
Programs
You can use any* IDE of your choice.
*If you need to use a web IDE, please use https://ide.usaco.guide/! Other platforms may publicly release your code or have integrated AI assistants, both of which are rules violations.
Internet
An internet connection is required to access the Codeforces platform and submit your solutions.
Codeforces Account
You must register for a personal Codeforces account before the contest begins. Register for a free account at https://codeforces.com.