Thank you to all participants for writing the holiday contest!

Congratulations to the top 3 participants :

1. andrewq
2. JonathanZhu19
3. SimonVutov

The contest problems are now publicly visible on CBOJ. We encourage you to try and solve them! Thank you and happy new year!

Hi everyone!

I hope you have had a wonderful year so far! This contest is brought to you by none other than Nathan (NK) and will be a review of all the concepts we have covered so far.

We encourage all club members to participate in this contest regardless of their experience with competitive programming, and this contest can be written in a 2 hour window until December 31, 11:59 PM EDT. This contest has 5 problems, ranging in difficulty from CCC J1 to S2/S3. For reference, J1 usually requires knowledge of basic I/O and programming language knowledge while S2/S3 require knowledge of complex algorithms like graph theory and dynamic programming (one of which we have already covered).

For more information, check out the contest page.

Good luck, have fun and merry christmas!

Thank you to all participants for writing the welcome contest!

Congratulations to the top 3 participants who all achieved perfect scores:

1. NK
2. andrewq
3. NKpp

Honorary mention: JonathanZhu19

The contest problems are now publicly visible on CBOJ. We encourage you to try and solve them! Thank you again and we hope you enjoyed the problems!

Hi everyone!

Welcome back to a new year of computing club! This welcome contest will be the first of hopefully many contests that we will host this year on CBOJ.

We encourage all club members to participate in this contest regardless of their experience with competitive programming, and this contest can be written in a 2 hour window between October 15, 9PM EDT to October 23, 11:59 PM EDT. This contest has 4 problems, ranging in difficulty from CCC J1 to S2. For reference, J1 usually requires knowledge of basic I/O and programming language knowledge while S2 also requires knowledge of complex algorithms like graph theory and dynamic programming (we will cover these later in the year).

For more information, check out the contest page.

Good luck, have fun and we hope to see you participate!

That's a wrap for the Spring Club Contest, thank you to everyone who participated!

Congratulations to the top 3 club participants:

1. Nirdev_Paul
2. JonathanZhu19
3. dingus123

The contest problems are now publicly visible on CBOJ. Thank you and we hope you enjoyed our problems!

Hi everyone!

It's time for our end of the year programming contest! This contest will run from Friday, June 10th to Tuesday, June 14th.

The contest will feature 5 problems of approximately ascending difficulty, ranging from CCC J1 to S4-level.

For more details, please see the contest page.

Good luck, have fun, and we hope to see you there!

CCC Registration is now open!

Register using the following link. Remember to pay using SchoolCashOnline!

Before the CCC:

• Familiarize yourself with the CCC grader. If you do not have an account, register using our school number (056506302).
• Practice some past CCC problems.

Languages offered for the CCC are:

• C++ (17)
• C
• Python 2
• Python 3
• Java (17)
• PHP
• Perl

If you have any further questions or concerns, feel free to contact Mrs. Kutschke at [email protected]

Good luck!

Join Computing Club's Google Classroom here. Join the CBOJ discord here.

That's a wrap for the Winter Club Contest, thank you to everyone who participated!

Congratulations to the 6 participants who got perfect scores:

• hugs_for_you_and_hugs_for_me
• crackersamdjam
• edweenie123
• prophet
• SeyonSivatharan
• r

The contest problems are now publicly visible on CBOJ :)

We'll be discussing the problems this thursday (February 11th) as preparation for the upcoming CCC.

We're hosting the winter club contest right on CBOJ for the upcoming CCC!

The contest is open to all club members and can be written in any 2.5-hour window between February 6, 6AM EST to February 8, 11:59PM EST. There will be 4 problems, with difficulty ranging from CCC Junior 3 to Senior 3.

For more information, you can check out the contest page at https://cboj.ca/contest/cbojr3.

That's a wrap for the Fall Club Contest, thank you to everyone who participated!

Congratulations to the top 3 club participants:

1. r
2. edwinolePenguino
3. Eshwar_Chockalingam

The contest problems are now publicly visible on CBOJ, and stay tuned for more contests this year :)

We're hosting another club contest right on CBOJ!

The contest is open to all club members and can be written in any 2-hour window between November 20, 6PM EST to November 23, 11:59PM EST. There will be 4 problems, with difficulty ranging from CCC Junior 3 to Senior 3.

For more information, you can check out the contest page at https://cboj.ca/contest/cbojr2.

The Welcome Contest has just ended, thank you to everyone who participated!

Congratulations to the top 3 club participants:

1. r
2. JamieTsai
3. Sabari

There will be more contests throughout the year, so stay tuned!

We're kicking things off this year with a Welcome Contest hosted right here on CBOJ!

The contest is open to all club members and can be written in any 2-hour window between October 16, 2PM EDT to October 18, 11:59PM EDT. There will be 4 problems, with difficulty ranging from CCC Junior 1 to Senior 3.

For more information, you can check out the contest page at https://cboj.ca/contest/cbojr1.

Attention to those who have signed up for Computing Club: Our first meeting will be held on October 8th, 3:00 PM EDT!

The Google Meets link is provided to the email you have registered the club form with, please check your inbox for the link.

We hope to see you there!

Welcome to Colonel By Online Judge! This judge Colonel By for the purpose of helping students to refine their programming and their computer science knowledge as well as hosting competitions throughout the year.

Create an account here.

If you already have an account you can login to the online judge from here.

The club website can be accessed through https://cboj.ca as well as https://cboj.codes.