09/05/2026
๐ Thanks to everyone for participating and making this round successful.
๐ป Keep practicing.
โก Keep improving.
๐ See you in the next SeriousOJ contest!
SeriousOJ is a competitive programming website. This is the official page of SeriousOJ.
09/05/2026
๐ Thanks to everyone for participating and making this round successful.
๐ป Keep practicing.
โก Keep improving.
๐ See you in the next SeriousOJ contest!
08/05/2026
๐จ Reminder!
โจ Educational Round 2 โจ begins in approximately 3.5 hours โ donโt miss it!
Join us today at 20:30 BST on the SeriousOJ Platform for an exciting coding showdown.
๐ป Not registered yet? Thereโs still time! Sign up now and be part of the action.
๐ฉ Registration link is available in the comment section below.
Kickstart your year with a coding adventure and showcase your programming skills! ๐ช
07/05/2026
Hello CP Enthusiasts!
Weโre thrilled to announce an exciting new contest โ ๐ฆ๐ฒ๐ฟ๐ถ๐ผ๐๐๐ข๐ ๐๐ฑ๐๐ฐ๐ฎ๐๐ถ๐ผ๐ป๐ฎ๐น ๐ฅ๐ผ๐๐ป๐ฑ ๐ฎ โ hosted on the ๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐ platform!
๐
Date: Friday, 8 May 2026
โฐ Time: 8:30 PM (BST)
๐ Problems: 6-8
โ Problem Writer: Kamonasish Roy, MD Shahinur Rahman
๐ Problem Testers: Thakur Emon, Abu Sufian Rafi, Abid Hussen
๐ Platform: ๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐
โข Rated : Level 0 โ Level 10
โข Difficulty: Similar to Codeforces Div 3- Div 2
With special appreciation to ๐๐ซ๐๐ ๐๐ฅ-๐๐๐ฆ๐ข, the owner of SeriousOJ, for his incredible support and for providing us with this amazing platform to compete and grow.
๐ How to Register: Visit ๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐ and sign up for the contest. Having trouble registering? Check your spam folder for the confirmation email.
Letโs learn, compete, and conquer in ๐ฆ๐ฒ๐ฟ๐ถ๐ผ๐๐๐ข๐ ๐๐ฑ๐๐ฐ๐ฎ๐๐ถ๐ผ๐ป๐ฎ๐น ๐ฅ๐ผ๐๐ป๐ฑ ๐ฎ ! Stay tuned for updates โ and check the comments for the registration link. See you all at the contest!
18/04/2026
๐ Congratulations to the Champions! ๐
A big thank you to all participants for making this contest exciting and competitive! โค๏ธ
๐ข Stay connected for more contests and opportunities!
16/04/2026
Hello CP Enthusiasts!
Weโre thrilled to announce an exciting new contest โ ๐๐จ๐๐๐๐จ๐ฆ๐๐๐ญ ๐๐๐ฉ๐ฅ๐๐ฒ ๐๐จ๐ฎ๐ง๐ ๐๐๐๐ โ hosted on the ๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐ platform!
๐
Date: Friday, 17 April 2026
โฐ Time: 8:30 PM (BST)
๐ Problems: 10 (one problem divided into two subtasks)
โ Problem Writer: Kamonasish Roy, Nasif Imtiaj, Abu Sufian Rafi
๐ Problem Testers: Aminul Haque Tanim, Toufik Islam, Md Jahirul Islam Hridoy, Muhammad Nadim, MD Shahinur Rahman
๐ Platform: ๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐
โข Rated : Level 0 โ Level 10
โข Difficulty: Similar to Codeforces Div 3
With special appreciation to ๐๐ซ๐๐ ๐๐ฅ-๐๐๐ฆ๐ข, the owner of SeriousOJ, for his incredible support and for providing us with this amazing platform to compete and grow.
This round was originally conducted as an onsite contest, and now we are bringing it to a wider global audience. If you have ๐๐ฅ๐ซ๐๐๐๐ฒ ๐ฉ๐๐ซ๐ญ๐ข๐๐ข๐ฉ๐๐ญ๐๐ ๐ข๐ง ๐ญ๐ก๐ ๐จ๐ง๐ฌ๐ข๐ญ๐ ๐ซ๐จ๐ฎ๐ง๐, we strongly recommend that you refrain from participating in this contest.
๐ How to Register: Visit ๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐ and sign up for the contest. Having trouble registering? Check your spam folder for the confirmation email.
Letโs learn, compete, and conquer in ๐๐จ๐๐๐๐จ๐ฆ๐๐๐ญ ๐๐๐ฉ๐ฅ๐๐ฒ ๐๐จ๐ฎ๐ง๐ ๐๐๐๐ ! Stay tuned for updates โ and check the comments for the registration link. See you all at the contest!
12/04/2026
๐ฅ Ready to code?
SeriousOJ is proud to host the CodeCombat Mock Test organized by IEEE Computer Society LU SB Chapter.
๐ป Open for all | โฑ๏ธ 1.5 hours
Challenge yourself and experience real contest vibes!
๐
April 12 | ๐ฃ 8:30 PM
We are excited to organizing the CodeCombat Mock Test under HackFusion 2026, organized by IEEE Computer Society LU SB Chapter.
๐ป This is an open-for-all mock contest, designed to help you practice, compete, and boost your problem-solving skills in a real contest environment.
โก We sincerely appreciate for providing a smooth, reliable, and competitive platform to make this contest possible.
๐ Duration: 1.5 Hours
๐
Date: April 12, 2026
๐ฃ Time: 8:30 PM
๐ Platform: SeriousOJ
Mock Contest Link: https://serious-oj.com/contest/69d7591c48074c00078872bb
๐ฅ Donโt miss this opportunity to test your coding skills and prepare yourself for the main contest!
11/04/2026
๐๐๐๐๐ฒ ๐ญ๐จ ๐ญ๐๐ฌ๐ญ ๐ฒ๐จ๐ฎ๐ซ ๐ฅ๐จ๐ ๐ข๐, ๐ฌ๐ฉ๐๐๐, ๐๐ง๐ ๐๐จ๐๐ข๐ง๐ ๐๐ฑ๐๐๐ฅ๐ฅ๐๐ง๐๐?
๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐ is proud to power the programming contest ๐๐๐๐ ๐๐๐๐๐๐, organized under Hackfusion 2026. We are honored to have our talented team members contributing as judges and problem setters, ensuring a competitive and high-quality contest experience.
Compete, learn, and challenge yourself on the ๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐ platform alongside some of the brightest minds.
๐ฅ Let the best coder rise to the top!
08/01/2026
Congratulations to the Top 10 Global Rankers of SeriousOJ, ๐๐ฎ๐ฝ๐ฝ๐ ๐ก๐ฒ๐ ๐ฌ๐ฒ๐ฎ๐ฟ ๐ฎ๐ฌ๐ฎ๐ฒ ๐ฅ๐ผ๐๐ป๐ฑ โจ
The SeriousOJ arena once again witnessed incredible problem-solving skills and determination as coders from around the world showcased their talent in Happy New Year 2026 Round.
๐ฅ ๐๐จ๐ฉ ๐๐๐ซ๐๐จ๐ซ๐ฆ๐๐ซ๐ฌ ๐จ๐ ๐ญ๐ก๐ ๐๐จ๐ฎ๐ง๐:
๐ฅ Champion: physics0523 ๐ฏ๐ต (KU) โ 7 problems solved, CF Max: 2795
๐ฅ 1st Runner-Up: zanj0 ๐บ๐ธ (Amazon)โ 7 problems solved, CF Max: 1841
๐ฅ 2nd Runner-Up: hieptk ๐ป๐ณ(Hawoi) โ 7 problems solved, CF Max: 2127
๐ก Notable mentions to all the outstanding coders who made it to the Top 10, representing institutions and countries with pride โ from Germany, Japan, USA, Bangladesh, India, and Thailand.
๐ Kudos to all participants for their consistent effort and competitive spirit.
Special thanks to the problem author Kamonasish Roy, Thakur Emon and to ๐๐ซ๐๐-๐๐ฅ ๐๐๐ฆ๐ข, the owner and driving force behind SeriousOJ, for providing such a vibrant platform for learning and competition.
Stay tuned and keep practicing โ more rounds are coming soon!
Letโs keep raising the bar of competitive programming! ๐ช
06/01/2026
๐จ Reminder!
"Happy New Year 2026 Round" begins in approximately 4.5 hours โ donโt miss it!
Join us today at 20:30 BST on the SeriousOJ Platform for an exciting coding showdown.
๐ป Not registered yet? Thereโs still time! Sign up now and be part of the action.
๐ฉ Registration link is available in the comment section below.
Kickstart your year with a coding adventure and showcase your programming skills! ๐ช
04/01/2026
Hello CP Enthusiasts!
Weโre thrilled to announce an exciting new contest โ ๐๐ฎ๐ฝ๐ฝ๐ ๐ก๐ฒ๐ ๐ฌ๐ฒ๐ฎ๐ฟ ๐ฎ๐ฌ๐ฎ๐ฒ ๐ฅ๐ผ๐๐ป๐ฑ โ hosted on the ๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐ platform!
This round is designed to help you learn and grow while tackling thoughtfully crafted problems. Whether youโre honing your skills or stepping up your game, this is a great chance to test yourself and have fun.
๐
Date: Tuesday, 6th January 2026
โฐ Time: 8:30 PM (BST)
๐ Problems: 7-8 problems
โ Problem Writer: Kamonasish Roy, Thakur Emon
๐ Problem Testers: Abu Sufian Rafi, Abid Hussen
๐ Platform: ๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐
With special appreciation to ๐๐ซ๐๐ ๐๐ฅ-๐๐๐ฆ๐ข, the owner of SeriousOJ, for his incredible support and for providing us with this amazing platform to compete and grow.
๐ How to Register: Visit ๐๐๐ซ๐ข๐จ๐ฎ๐ฌ๐๐ and sign up for the contest. Having trouble registering? Check your spam folder for the confirmation email.
Letโs learn, compete, and conquer in ๐๐ฎ๐ฝ๐ฝ๐ ๐ก๐ฒ๐ ๐ฌ๐ฒ๐ฎ๐ฟ ๐ฎ๐ฌ๐ฎ๐ฒ ๐ฅ๐ผ๐๐ป๐ฑ ! Stay tuned for updates โ and check the comments for the registration link. See you all at the contest!