Hello Codeforces!

We are excited to share important updates regarding the MACSO Finals and Congratulations to all participants for your hard work and dedication!

You're qualified for MACSO Finals if

Scored 221 points on MACSO Qualification Round 2025 Finished top 10 in your state (US) or country in MACSO Quals 2025 Finished top 10 in MACSO Finals 2024 (both online and in-person).

All finalists will receive an invitation email. If you receive the email today, you are invited to MACSO 2025.

We would also like to announce that if you registered but didn't submit anything, we will count it as 1 point on our qualification round. So make sure to check your mail in any case.

Congratulations to people who've successfully qualified! We are highly encourage everybody to come In-Person if you can (if you have issues with transportation, we can pick up a couple of you and then bring back home so be free to message me if you really need a ride) as it would give you a lot of benefits:

Networking Opportunities: Connect with other talented individuals, share ideas, and even collaborate with like-minded peers. Who knows, you might meet your future hackathon partner or co-founder!

FREE T-Shirt: As an in-person finalist, a few days after the competition, you'll receive an exclusive MACSO T-shirt as a memory of this event.

Amazing Prizes for the in-person Winners!

Gold Medalist:  Golden Cup + Medal + MACSO Plushy Whale + Sponsored Wolfram Alpha Prize worth $1770
Silver Medalist: Silver Medal + MACSO Plushy Whale + Sponsored Wolfram Alpha Prize worth $1770
Bronze Medalist: Bronze Medal + MACSO Plushy Whale + Sponsored Wolfram Alpha Prize worth $1770
Honorable Mention (4th Place): Congratulating Certificate + MACSO Plushy Whale + Art of Problem Solving $25 certificate
Honorable Mention (5th Place): Congratulating Certificate + MACSO Plushy Whale + Art of Problem Solving $25 certificate

For those who physically can't participate offline, don't worry! Here are the prizes for online competitors:

Gold Medalist: Diploma + Sponsored Wolfram Alpha Prize worth $1770 + Art of Problem Solving $25 certificate Silver Medalist: Diploma + Sponsored Wolfram Alpha Prize worth $1770 Bronze Medalist: Diploma + Sponsored Wolfram Alpha Prize worth $1770

We can't wait to see you all tomorrow! Don't forget the schedule above and come around 2 PM to Brookline Teen Center (40 Aspinwall Ave, Brookline, MA 02446)! For online participants, the stream of the Opening and Closing ceremony would be here on Discord Stage so be sure to connect to us!

MACSO 2025 FINALS SCHEDULE

2:00 — 2:30 — Arrival and Registration 2:30 — 3:30 — opening ceremony 3:30 — 6:30 — the contest 6:30 — 8 pm — closing ceremony and networking time

MACSO Finals is one of the few coding in-person events in the MA, so don't miss your chance.

For those who are going to compete online, the contest would be held at exactly the same time, in 3 hours.

Be aware that the Qualification ends 2 days ago so you still have time to solve some problem and get your chance to get to the Finals! Good luck for everyone!

Hello everyone!

As we approach the Massachusetts Computer Science Olympiad Summer 2025, we'd like to do

MACSO 2024 RECAP

The first Massachusetts Computer Science Olympiad (MACSO) was founded and organized by Mikhail Zhernevskii, Lucas Chen, and Tyler Sacharow, three Brookline High School students, in 2024. MACSO welcomed 278 participants from 182 schools in 40 countries to compete online and in person. The top 50 competitors from Massachusetts, Connecticut, Colorado, Pennsylvania, California, and even Canada came to Brookline to face off on October 19 at the Brookline Teen Center. MACSO became the largest high school coding competition in Massachusetts.

Over three hours, high school students solved 10 coding problems. Three MIT undergraduates Weiming Zhou, Thomas Liu, and Austin Geng solved the problems along with other students and kept the spirit of the competition. After careful review by guest judge Shruti Duhmak, a Google Engineer, the champions were announced:

In-Person High School Finals MACSO 2024:

1. Mark Zhou, George School, PA

2. Artur Gilfanov, Fairview High School, CO

3. Yancheng Zhao, Buckingham Browne & Nichols School, MA

Online Open Finals MACSO 2024

1. Jaehyun Koo, Massachusetts Institute of Technology (MIT), MA, USA

2. Julian Wu, Westview High School, CA, USA

3. Yu Zheyuan, NUS High School of Math and Science, Singapore

The winners received a year-long Wolfram One Professional Edition subscription, JetBrains Professional Pack, Amazon Gift cards, diplomas, and whale plushes.

Brookline News and The Cypress featured MACSO in their articles

The event wouldn't have happened without our generous sponsors and partners: Wolfram, JetBrains, Art of Problem Solving, American Computer Science League, Algoverse, Russian School of Mathematics, Brookline Teen Center, Brookline High School, Data Intensity, KTBYTE Computer Science Academy, HackClub SCOE, and Lexington Informatics Tournament.

Hosting MACSO 2024 was a huge milestone for our team. We appreciate everyone's participation and involvement in MACSO 2024. Your support motivated us to continue creating and hosting such grand events. For example...

MACSO 2025

This year, Sergey Zatsepin and Ethan Chen joined our team as organizers and are hosting the Massachusetts Computer Science Olympiad Summer 2025 this Sunday, July 27th. The qualification round ends today, on July 25th. Sign up now and don't miss the opportunity to participate in this amazing event!

Hello, Codeforces!

Our team is delighted to announce that the Massachusetts Computer Science Olympiad (MACSO) is back!

MACSO Summer 2025

-- the largest high school competition in Massachusetts to solve puzzling problems, meet ambitious peers passionate about CS, and grab some swag!

We hope and will try our best so our online participants will enjoy the event as much as our in-person contestants :)

We are excited to see you at MACSO Summer 2025 on July 27th at the Brookline Teen Center or online. The contest will start around 3 pm EST and last for 3 hours (**Exact timing will be announced later this week**)

Join the Qualification Round while it's still on!

Hello, Codeforces!

We have determined the final curve for both qualification rounds for Online Open Finals and In-Person High School Finals!

In-Person High School Finals

Finalist Selection & Notifications Top 50 Selected: We made a cutoff of the top 50 participants for the In-Person High School Finals and have begun sending out notification emails. Didn’t Receive an Email? If you believe you haven't received an email, please reach out to us via Discord providing your CodeForces handle and registered email address. Curious About Your Rank? Feel free to text us to inquire about your current ranking. Prizes for In-Person Finals

All In-Person Finalists Will Receive:

1. free MACSO T-shirt
2. free JetBrains Software Pack (includes PyCharm, CLion, IntelliJ, and 6 other tools)
3. Certificate of Finalist

Top Performers:

Gold Medalist

1. $200 Amazon Gift Card
2. $600 KTBYTE Voucher
3. $1,660 Wolfram Alpha Annual License

Silver Medalist

1. $100 Amazon Gift Card
2. $400 KTBYTE Voucher
3. $1,660 Wolfram Alpha Annual License

Bronze Medalist

1. $50 Amazon Gift Card
2. $300 KTBYTE Voucher
3. $1,660 Wolfram Alpha Annual License

Honorable Mentions (4th — 10th Place)

$20 Amazon Gift Card each

Online Finals

Eligibility Criteria

To participate in the Online Open Finals, you must either have 471 points or be the best in your country or US state. We want to clarify that coders of all ages and all levels of education are eligible to participate in MACSO Online Open Finals.

Invitations are Pending

We have selected a total of 75 participants to join our Online Open Finals and started sending the invitations. You will receive them during the next 24 hours.

Prizes

Online Open Finals Gold Medalist

1. $50 Amazon Gift Card
2. $1,660 Wolfram Alpha Annual License
3. Jetbrains sofware Pack

Online Open Finals Silver Medalist

1. $30 Amazon Gift Card
2. $1,660 Wolfram Alpha Annual License
3. Jetbrains sofware Pack

Online Open Finals Bronze Medalist

1. $20 Amazon Gift Card
2. $1,660 Wolfram Alpha Annual License
3. Jetbrains sofware Pack

In addition, we will raffle 10 JetBrains Packs among other contestants.

Stay tuned for more updates and ensure you check your emails regularly. Thank you for your continued participation and enthusiasm in MACSO. Best of luck to all finalists!

Warm regards,

The MACSO Team

Dear MACSO Participants,

We are excited to launch the Second Qualification Round, which is now live and runs from September 1 to October 1. This round introduces new challenges and opportunities for all participants.

What You Need to Know:

3 New Problems Added: The second qualification round introduces 3 new problems. Points from the original 3 problems (A, B, and C) still count toward your total score. Scores will be combined from both rounds, and time will no longer be a tie-breaker. The new problems will become progressively harder, so aim to score as many points as possible on each one.

Separate Rankings for Finals: Participants aiming for the In-Person High School Finals at Brookline Teen Center, MA, will be ranked separately from those competing for the Online Open Finals.

Resubmit Your Solutions: We have set up a new Codeforces competition. If you are a high schooler planning to participate in the in-person finals, you must resubmit your solutions for the existing problems in this new competition. Even if Codeforces shows them as already solved, resubmission is required to be included in the rankings.

Updated Registration Form: We have made some updates to our registration form. We ask that you complete it to confirm whether you plan to attend the finals in person, along with your country and state. Please take a moment to fill out the form here:

Updated MACSO Registration Form.

Score Curve Update: We know many of you are curious about the score curve. We can't provide an exact cut-off score yet due to the new problems. However, the approximate threshold for the In-Person High School Finals is currently about half of the Online Open Finals threshold.

Next Steps:

Prepare well, focus on scoring as many points as you can, and stay tuned for further announcements. We wish you all the best of luck and hope you enjoy the new challenges ahead!

Best regards,

The MACSO Team

Hello Codeforces!

Our team, Brookline Computer Science Initiative, is excited to announce the

Massachusetts Computer Science Olympiad

The individual online qualification round lasts from August 1, 2024, 11:59 PM (EST) to Oct 1, 2024, 11:59 PM (EST) for all online participants. The qualification round has no time limit and consists of 6 problems. MACSO is a free competition and has problem difficulty ranging from Div 3 to Div 2 in terms of Codeforces rounds.

The top qualifiers will advance to the final round on October 19th participating either online or in-person at the Brookline Teen Center (two separate rankings).

The online final round is open to everyone. The top 3 online finalists will receive Amazon gift cards and sponsored awards. In addition, Raffle prizes will be randomly distributed among 5% of the online finalists

In-person finals are designated only for high school students and will take place at the Brookline Teen Center, MA at the same time. On-site participants will be provided with free t-shirts, pizza, and fun activities. The top 5 finalists will receive Amazon gift cards and solid sponsors awards. We will randomly draw raffle prizes among 10% of the in-person finalists

Register now at macso.org/form

In-Person High School Qualification Round

https://codeforces.me/group/mlc657bZIV/contest/545413

Online Open Qualification Round

https://codeforces.me/group/mlc657bZIV/contest/539165

More info on our website: macso.org Join our discord: https://discord.gg/cX7tmKwJ8f

Good luck!