Greetings Codeforces Community!
We are thrilled to announce Algorithmia 2025, an ICPC style programming competition organized by the DotSlash Community, IIIT Nagpur as a part of our annual tech fest Tantrafiesta.
Date: 4th October, 2025
Prizes: INR 30,000+ in goodies and cash
Team Size: 2–3 members per team
Eligibility: Anyone who is pursuing a degree.
Round 1 — 4th October (Online on Codeforces):
- Time : 8:00-10:00 pm (GMT+5:30)
- Team contest with 2–3 members.
- There will be 8 Problems not sorted in difficulty order.
- Will be hosted on Codeforces Gym.
- Scoring: Time-based rankings with a +10 minute penalty for each wrong submission.
Round 2 — 9th October (Onsite at IIIT Nagpur):
- Time : 8:00 pm-3:00 am (GMT+5:30)
- Top 10 teams from Round 1 qualify.
- There will be 8 Problems in Round 2.
- Round 2 format will be similar to Round 1.
Problem Setters and Testers: shubhamjee, phoenix_vasu, virinci, vasu52, Chet1398, Rajdeep10, sambodhi7, pranavtiwari1506
Register Here: https://unstop.com/hackathons/algorithmia-tantrafiesta25-iiitn-1560187
Prize Distribution
- Winner : Rs. 15000
- 1st Runner Up : Rs. 10000
- 2nd Runner Up : Rs. 5000
- Goodies for all Round 2 Finalists
- Participation Certificate to everyone who solved atleast one problem.
Note: The use of plagiarism or AI assisted tools is strictly prohibited. Any team found violating this rule will be immediately disqualified and removed from the standings. To ensure transparency, you may record your screen during the contest as an additional safety measure.
A huge thanks to Codeforces for providing this platform :).
In case of any queries, you may ask in the comments.
<3
/(^.●)\
Timing of onsite is too close to the ICPC prelims.
That’s why we are doing the final 5 hour round on 9th at night, so that you can return before 11th. Even if you reach on the morning of the 11th, it won’t be a problem since ICPC is held in the evening. Thanks for considering!!
LLMrithmia :(
Why are we seeing easier versions of hard topics being used when it’s obvious that ChatGPT or similar tools will dominate on these kinds of problems? The fact that 80 people solved matrix exponentiation in the contest clearly indicates obvious mass cheating.
I trust that in the near future, there will be stricter plagiarism checks, but right now, it honestly feels like I've wasted my time competing, not against other programmers, but against GPT and people with typing speeds of only 30 WPM. I failed miserably, and it’s disheartening.
That said, I understand conducting contests isn’t easy. I still wish you all the best for future contests and improvements.
I have asked the organizers to do the plag check properly, hopefully they will filter out as many cheaters as they can. Extremely Sorry for what happened.
DeadMan69 Problem B has weak test cases, lots of AC code are gonna get WA if you even add some basic tc's like n=11 or n=13 with appropriate l and r. I think that problem should be rejudged.
I am sorry we won't be able to rejudge because we haven't mentioned any kind of additional test cases being added after the contest.it will not be fair to people who got it correct
Please give editorial.