Rounds & registration
Contests
Register for an upcoming round, grab your CMS pass, and browse every recorded BdOI practice contest.
Website registration
Register here and your CMS handle and password are issued instantly — no Discord command needed.
Practice archive
3 roundsRound links open the original Codeforces Gym contest when available.
1
Sign in and complete your profile
School, class and district are required for contest entry and OI/IOI paperwork.
2
Register on the round
A permanent BdOI handle plus a fresh 10-character CMS password for that round only.
3
Import into CMS
Organisers download a validated contest.yaml with one user entry per registration.
Archive data comes from the public BdOI practice API and is refreshed every 5 minutes.