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Qingyu's blog

IOI 2025 China Team Selection — Current Standings
By Qingyu, 10 hours ago, In English

Hi, everyone.

The first stage of the IOI 2025 China Team Selection began yesterday. The top 50 participants from the 2024 National Olympiad in Informatics (NOI) will compete for a spot on the Chinese national team for IOI 2025.

The rule of selecting CHN team this year:

  • Homework (10%): also known as mutual tests, where the students were asked to prepare a task (5%), and participate in the contests made by other students (5%)
  • First stage (CTT; 54%; Dec 3, 2024 — Dec 5, 2024): three contests in classic olympiad format, where each contest worthes 18% of the score. Top 30 participants will advance to the final stage.
  • Final stage (CTS; 36%; Jan 20, 2025 — Jan 22, 2025): two contests in classic olympiad format, where each contest worthes 18% of the score.

The current scoreboard can be found here.

Past problems of the China IOI Team Selections can be found here (first stage and final stage). I will upload all the tasks once they can be publicly shared.

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9 hours ago, # |
  Vote: I like it 0 Vote: I do not like it

is there any scoreboard that can be accessed in china?

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9 hours ago, # |
  Vote: I like it +38 Vote: I do not like it

I'm wondering if you can connect the participants with their cf handles.

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2 hours ago, # |
  Vote: I like it +8 Vote: I do not like it

I'm curious, but how is the homework scored (specifically on the part of setting problem)?

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