Welcome to the official CS Center website! This site includes lesson pages and a large collection of original computer science problems ranging from introduction problems to higher-level competition problems.

Also, we have editorials for problems not on our site, like CCC problems.

This website is closely bound the WCI's Computer Science club. Waterloo Collegiate Institute's official school website can be found at wci.wrdsb.ca. Neither Waterloo Collegiate Institute (WCI) nor the Waterloo Region District School Board (WRDSB) endorse this website or are associated with it.

Contact Us

Check out our FAQ here. You can contact us with questions and comments here.


  • This website is developed by:

  • It is run on BudgetNode using Python's Flask server library and Jinja2's templating engine. HTTPS connections are managed through nginx and the Let's Encrypt certificate provider.

  • Special thanks to Andy Bao for providing us with the server.

  • Site design inspired by the DM::OJ