Home - MarisaOJ: Marisa Online Judge

📣 MARISAOJ ADMIN RECRUITMENT RESULTS 2026

Posted on March 3, 2026, 12:29 p.m.

MarisaOJ Volunteer Selection Results

First of all, MarisaOJ would like to sincerely thank everyone who showed interest and applied to become a volunteer for the project.

After a thorough review and evaluation process, we have finalized the selection for this recruitment round. The results have been sent to each applicant via email, so please check your email for further details.

We are truly grateful to receive many strong applications from people who care about and want to contribute to the MarisaOJ community.

However, due to the limited number of available positions, we regret that we cannot select everyone.

If you were not selected this time, please do not be discouraged, we encourage you to apply again in future MarisaOJ volunteer recruitment rounds.

MarisaOJ

Legoshi

March 3, 2026, 12:29 p.m.

📣 [ADMIN RECRUITMENT ANNOUNCEMENT | MarisaOJ 2026]

Posted on Jan. 27, 2026, 3:24 a.m.

MarisaOJ is officially opening applications for the Administrator position!

With the goal of building a free, high-quality competitive programming resource, MarisaOJ is looking for passionate and dedicated members to help develop and improve our materials, making them more comprehensive and valuable for the community.

Administrators will participate in organizing contests, adding new problems and topics, and supporting members within the MarisaOJ community.

  • ⏰ Application Deadline: February 24, 2026
  • 📩 Results Announcement: Via Discord or Email (based on your registration information)

Legoshi

Jan. 27, 2026, 3:24 a.m.

Marisa Online Judge has reached the milestone of 1e6 submissions!

Posted on Dec. 22, 2025, 6:27 a.m.

It has been a long journey since MarisaOJ was founded 3 yeards ago, and MarisaOJ has reached the milestone of 1e6 submissions

We hope MarisaOJ has been a valuable resource in your studies. Marisa sends the best wishes the contestants of the upcoming National Olympiad, and for all the members of MarisaOJ on their future competitive programming journey!

letterc67

Dec. 22, 2025, 6:27 a.m.

MarisaOJ Contest - Round #3 🐘

Posted on Dec. 15, 2025, 2:26 p.m.

The next MarisaOJ contest — Round #3 "MariVOI 2026" — will take place on Saturday, December 20, 2025 at 20:00 (GMT+7)!

Time: 20:00 +07 | 20/12/2025 — 3.0 hours

Rules (National OI-style format):

  • 3 problems
  • 3 hours
  • Maximum 3 submissions per problem

Access the contest here.

Join our Discord server here to receive the earliest announcements!

MarisaOJ Contest - Round #3 🐘 (MariVOI 2026)

Legoshi

Dec. 15, 2025, 2:26 p.m.

MarisaOJ Halloween Contest - Round #2 🎃

Posted on Oct. 27, 2025, 12:53 p.m.

The next MarisaOJ Contest will take place on Friday, 31/10/2025 at 20:00 GMT+7!

The round consists of 5 to 6 problems in OI format, and you've got 3 hours to solve them all.

Join the Discord server here to get notified faster!

letterc67

Oct. 27, 2025, 12:53 p.m.

MarisaOJ Contest - Round #0.25

Posted on April 7, 2025, 4:06 a.m.

The next MarisaOJ Contest will take place on Monday, 07/04/2025 at 20:00 GMT+7!

The round consists of 6 problems in ICPC format, and you've got 2 hours and 30 minutes to solve them all.

Join for fumo ᗜˬᗜ

Join the Discord server here to get notified faster!

letterc67

April 7, 2025, 4:06 a.m.

MarisaOJ Contest - Round #1 Results

Posted on Jan. 20, 2025, 3:18 a.m.

The competition has concluded with the top 3 being, each receives an MarisaOJ t-shirt! - 1. qiocas (440 points) - 2. abcdxyz123 (440 points) - 3. HoangMC2009 (360 points) The 3 lucky contestants are, each also receives an MarisaOJ t-shirt: - 9. mduc209 - 34. thaibeo123 - 35. K.Niva Congratulations to the winners and all participants who took part in the competition.

letterc67

Jan. 20, 2025, 3:18 a.m.

MarisaOJ Contest - Round #1

Posted on Jan. 17, 2025, 4:50 p.m.

The next MarisaOJ will take place on Saturday, 18/01/2025 at 20:00 GMT+7!

The contest format is OI (Olympiad in Informatics), and you will earn points for each test case answered correctly.

The problem set consists of 5 problems, ranging from easy to moderately difficult.

Join now for a chance to win a MarisaOJ T-shirt:

Join the Discord server here to get notified faster!

letterc67

Jan. 17, 2025, 4:50 p.m.

MarisaOJ Contest - Round #0 Results

Posted on Dec. 23, 2024, 2:21 a.m.

First of all, we would like to apologize to everyone for the system instability during the competition. This issue will be resolved in future competitions!

The competition has concluded with the top 5 being: - 1. steveonalex (600 points) - 2. _marvinthang (600 points) - 3. kh0i (600 points) - 4. thanglieu (600 points) - 5. icebear (545 points) Congratulations to the winners and all participants who took part in the competition. The winner of the 1 Fumo Marisa prize is: ily2003! Join the Discord server to stay updated on events and prize distribution.

letterc67

Dec. 23, 2024, 2:21 a.m.

MarisaOJ Contest - Round #0

Posted on Dec. 18, 2024, 11:52 a.m.

The first official contest of MarisaOJ will take place on Saturday, 21/12/2024 at 20:00 GMT+7!

The contest format is OI (Olympiad in Informatics), and you will earn points for each test case answered correctly.

The problem set consists of 6 problems, ranging from easy to moderately difficult.

Join now for a chance to win exciting prizes:

Join the Discord server here for more information about the prizes.

letterc67

Dec. 18, 2024, 11:52 a.m.