CCC Contest System

This CCC Online Grader is the system used to run the Canadian Computing Competition. It also provides access to practice problems and previous contests.

Instructions, Rules and Language Details

Participants and supervisors should familiarize themselves with the following sources of important information.

Important Links and Login


Username:
Password:

Any unauthorized access, attempts to circumvent the security controls, or abuse of the system will result in DISQUALIFICATION from all contests.
The CCC Grader will not be publicly available from approximately 5pm to 10pm on Tuesday, March 3rd, 2026 and Thursday March 5th, 2026.


The CCC is sponsored by Hudson River Trading