**Hello Codeforces!**↵
↵
Following the massive success of IIMOC (International Math Optimization Challenge) 2025, which saw over 200 teams and 9,500+ iterative submissions, we are back with something significantly more ambitious. This year, IIMOC is moving from a standard contest to a month-long, research-grade optimization marathon.↵
↵
In partnership with FrontierCS, we are removing all division boundaries. H## About IIMOC x FrontierCS↵
The IIMOC is a global high -schoolers, university students, and industry professionals will now compete on a single, unified global leaderboard.↵
↵
## Why Participate?↵
↵
* **Beyond "Accepted":** We have moved past the green checkmark. Tasks are sourced from the FrontierCS benchmark: problems that are easy to approach but are difficult to solve exactly.↵
* **The Power of Delta:** Your goal isn't just to find a valid solution; it is to hunt for the Delta -- the measurable improvement o contest focused on heuristic problem solving. It is problemset by the FrontierCS team, a PHD research team of former competitive programmers, including CP legends and problemsetters like [user:zhoukangyang,2026-04-10] and [user:ZhouShang2003,2026-04-10]. ↵
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Teams from around the world are invited to tackle a single large-scale optimization problem that is intentionally approachable but unsolvable in exact form. Over the courrent global best-known score.↵
* **Resse of one month, earch-Backed Depth:** These aren't "riddles." You can explore the philosophy behind the challenge team develops algorithms and the real-world applications of this contest in the FrontierCS Blog or explore the research applications of FrontierCS in the Research Paperuristics to minimize loss and maximize performance.↵
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## Dynamic Scoring and "King of the Hill"↵
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We have designed a scoring system that rewards both peak performance and consistent innovation:↵
↵
* **Relative Scaling (0-100):** Every problem is scored relative to the current Global Best. If you hold the world record, you have 100 points. If someone else pushes the frontier further, the "ceiling" rises, and all other scores are scaled down in real-time.↵
* **The "King of the Hill" Bonus:** To reward those who set the pace and prevent "last-minute sniping," every day, teams will receive bonus points for each problem based on their current placement.↵
↵
## Prizes and Global Distinction↵
↵
With a unified leaderboard, the competition will be at an all-time high. We are awarding:↵
↵
* **Official T-Shirts:** For the Top 3 teams globally.↵
* **Gold Distinction:** Top 10% of the leaderboard.↵
* **Silver Distinction:** Top 20% of the leaderboard.↵
* **Bronze Distinction:** Top 30% of the leaderboard.↵
* **Participation Award:** Anyone who submitted a non-zero score solution.↵
↵
### Team Logistics↵
* **Max 4 members per team.**↵
* **Open to everyone (Unified Division).**↵
↵
## Schedule↵
↵
| Date | Event |↵
| :--- | :--- |↵
| Apr 15 | Practice Problems Released |↵
| May 1 | Contest Start |↵
| Jun 1 | Submissions Close |↵
| Jun 10 | Results Released |↵
↵
## Technical Infrastructure↵
↵
This season is made possible by our lead sponsors, AP Memory and CascadeX. Their support provides the high-performance infrastructure required for a month-long, iterative grading marathon.↵
↵
For those who want to get a head start on the environment, check out the general benchmark and evaluation infrastructure on the FrontierCS GitHub. ↵
↵
* **Problems Prepared by:** FrontierCS Team↵
* **Testers:** FrontierCS Team and IIMOC Team↵
↵
## Register: [iimoc.org](http://iimoc.org)↵
↵
See you on the leaderboard!
↵
Following the massive success of IIMOC (International Math Optimization Challenge) 2025, which saw over 200 teams and 9,500+ iterative submissions, we are back with something significantly more ambitious. This year, IIMOC is moving from a standard contest to a month-long, research-grade optimization marathon.↵
↵
The IIMOC is a global high
↵
## Why Participate?↵
↵
* **Beyond "Accepted":** We have moved past the green checkmark. Tasks are sourced from the FrontierCS benchmark: problems that are easy to approach but are difficult to solve exactly.↵
* **The Power of Delta:** Your goal isn't just to find a valid solution; it is to hunt for the Delta -- the measurable improvement o
↵
Teams from around the world are invited to tackle a single large-scale optimization problem that is intentionally approachable but unsolvable in exact form. Over the cour
* **Res
↵
## Dynamic Scoring and "King of the Hill"↵
↵
We have designed a scoring system that rewards both peak performance and consistent innovation:↵
↵
* **Relative Scaling (0-100):** Every problem is scored relative to the current Global Best. If you hold the world record, you have 100 points. If someone else pushes the frontier further, the "ceiling" rises, and all other scores are scaled down in real-time.↵
* **The "King of the Hill" Bonus:** To reward those who set the pace and prevent "last-minute sniping," every day, teams will receive bonus points for each problem based on their current placement.↵
↵
## Prizes and Global Distinction↵
↵
With a unified leaderboard, the competition will be at an all-time high. We are awarding:↵
↵
* **Official T-Shirts:** For the Top 3 teams globally.↵
* **Gold Distinction:** Top 10% of the leaderboard.↵
* **Silver Distinction:** Top 20% of the leaderboard.↵
* **Bronze Distinction:** Top 30% of the leaderboard.↵
* **Participation Award:** Anyone who submitted a non-zero score solution.↵
↵
### Team Logistics↵
* **Max 4 members per team.**↵
* **Open to everyone (Unified Division).**↵
↵
## Schedule↵
↵
| Date | Event |↵
| :--- | :--- |↵
| Apr 15 | Practice Problems Released |↵
| May 1 | Contest Start |↵
| Jun 1 | Submissions Close |↵
| Jun 10 | Results Released |↵
↵
## Technical Infrastructure↵
↵
This season is made possible by our lead sponsors, AP Memory and CascadeX. Their support provides the high-performance infrastructure required for a month-long, iterative grading marathon.↵
↵
For those who want to get a head start on the environment, check out the general benchmark and evaluation infrastructure on the FrontierCS GitHub. ↵
↵
* **Problems Prepared by:** FrontierCS Team↵
* **Testers:** FrontierCS Team and IIMOC Team↵
↵
## Register: [iimoc.org](http://iimoc.org)↵
↵
See you on the leaderboard!
