Are we looking forward to a hybrid problem format in IOI 2025?

Revision en1, by hieudxm, 2025-07-15 16:56:01

I have just visited the official IOI2025 and read the Contest Rules here, when I suddenly saw this:

Each task is divided into some number of subtasks, each worth a portion of the total points. Each subtask is either a programming subtask (the solution is source code) or an output-only subtask (the solution is a set of output files).

For comparison, here is the 2024 version:

Each task is either a programming task (the solution is source code) or an output-only task (the solution is a set of output files). Each task is divided into some number of subtasks, each worth a portion of the total points.

It seems like we could see a lot of output-only tasks this year =))

I tried to find the 2024 IOI General Assembly meeting minutes but there seems to be none. International Committee is the only IOI committee that published its minutes, but their contents are totally unrelated to my concern. I searched the IOI Journal and it's useless also. I don't know if we have ever discussed this yet in Codeforces.

Therefore, I am currently wondering:

  1. Did I miss anything?
  2. Who initiated this idea? How did they came up with such a hybrid format? and Why did the IOI decided to change the format this year?
  3. Has there any contest that had experimented with this format? How would this actually works this year? How would this affect the contestants' strategies and workflow?

Do you guys have any other ideas or questions about this new format?

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en2 English hieudxm 2025-07-15 17:27:39 10 Change the link from 24 to 25.
en1 English hieudxm 2025-07-15 16:56:01 1573 Initial revision (published)