Edit: Registrations have been extended! They will now close 4/26 at midnight PT! Register while you still can!

Hello Codeforces!

We are excited to invite you to compete in CALICO Spring '24! The contest starts Saturday, April 27, 2024 at 4:00 p.m. PT and will be 3 hours long. Registrations are now open and will be until April 26, 2024 at 11:59 p.m. PT, so register here while you can! The contest will take place on our custom judge platform and for the first time, contestants can compete online or in-person at UC Berkeley!

In-Person Contest (New!)

The CALICO team is proud to announce our first in-person contest ever—that's right, CALICO will be happening LIVE at UC Berkeley! We’ll be providing in-person contestants with exclusive merch, dinner, and opening/closing ceremonies with live guest speakers. This is also an excellent opportunity to explore the UC Berkeley campus, meet the team, and make new programming friends! If you’re interested, be sure to fill out this additional form in addition to the main registration form.

About

The California Informatics Competition (CALICO) is a semiannual team programming contest organized by students at the University of California, Berkeley. We create original problems to encourage students to grow their problem-solving skills and learn algorithms in fun and exciting ways. Check out our website to learn more about the contest and join our discord server to get announcements, make teams, hang out, and more!

Contest Info

The contest will be 3 hours long and you can compete solo or in a team of up to 3. There will be around 8-12 problems spanning a wide range of difficulty for all skill levels. Some problems will have bonus test sets, where more efficient or advanced solutions can earn additional points. At least one of the problems will be interactive. Anyone can compete, but only pre-college teams will be eligible to win prizes. Editorials for some problems will also be available after the contest. More details will be released as the contest date approaches.

Credits

These awesome problems and editorials are written, prepared, and tested by the CALICO Team, including Bungmint, plourde27, yjp20, bradley.louie1, EJam, spiralsim, Gotheru, ss1237, mudkip, fatant, alfphaderp, vcivek, voidcs, JayU_, skywire2000, and many more!

We’ve had a ton of fun creating these problems! We think there will be something interesting for everyone, regardless if you’re totally new or an experienced competitor.

Good luck on the contest!

Link to English flyer | Chinese flyer