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The quota allocation for CCF NOI in each province (including municipalities and autonomous regions, hereafter collectively referred to as "provinces") consists of two categories: Category A and Category B.
- Category A represents the basic contestant quota, with each province receiving an equal number of slots.
- Category B represents the reward quota for outstanding performance, allocated by the organizing committee to provinces with exceptional NOI participation based on predefined criteria.

All contestants in Categories A and B must be selected by provincial organizing units through procedures reviewed and approved by the national organizing committee. Contestants directly assigned without undergoing the selection process will be deemed ineligible.

Detailed Quota Allocation Plan

I. Category A

Each province receives 5 Category A slots, with at least 1 slot reserved for a female contestant.

II. Category B

The Category B quota for each province comprises three components: B1, B2, and B3. Let the total Category B quota be S (where S = 150). The calculation methods are as follows:

1. B1 (Popularization Component, 50%)
   Calculated based on the number of participants in the latest NOIP (National Olympiad in Informatics in Provinces):

1. B2 (Overall Performance Component, 30%)

• For each province, the latest NOIP scores are sorted in descending order and divided into K1 segments (where K1 = 5). The average score of each segment is taken as the province’s representative scores.
• All representative scores nationwide are ranked, and the top S × 30% (rounded down) are selected.
• A province’s B2 quota equals the number of its representative scores within the top S × 30%.
• If tied scores occur at the cutoff, all tied scores are included, and the quota is proportionally adjusted based on the actual total (see example below).

Example: If the predetermined B2 quota is 45, but including tied scores results in 47 participants, and a province has n representative scores among them, its adjusted B2 quota is:

1. B3 (Excellence Component, 20%)

• For each province, the top K2 scores (where K2 = 5) from the latest NOIP are selected as its outstanding scores.
• All outstanding scores nationwide are ranked, and the top S × 20% (rounded down) are selected.
• A province’s B3 quota equals the number of its outstanding scores within the top S × 20%.
• Tie adjustments follow the same method as B2.

1. Provincial Limits for Category B

• The total Category B quota for a province ( B = B1 + B2 + B3 ) must not exceed 5% of its latest NOIP participants with non-zero scores.
• Additionally, no province may receive more than 12 Category B slots.

III. Notes

1. The final Category B quota for each province is rounded to the nearest integer.
2. Only high school contestants with non-zero scores in the latest NOIP are counted for calculations.
3. The CCF NOI Scientific Committee reserves the right to interpret and finalize this plan.

China Computer Federation (CCF)
October 9, 2024

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Studying computer science is beneficial for cultivating logical thinking and problem-solving skills in adolescents. However, this requires a foundational knowledge base and cognitive abilities, and earlier participation is not necessarily better. In recent years, there has been a trend of increasingly younger elementary school students participating in the CCF Non-Professional Software Competency Certification (CSP-J/S). Premature participation in CSP-J/S by elementary school students negatively impacts their physical and mental health and regular academic development, which also contradicts the original purpose of CCF's certification program. Additionally, some middle schools have begun using elementary students’ CSP-J/S results as a reference for admissions, leading to significant utilitarian tendencies that disrupt normal educational and admission processes.

To address this, the CCF NOI Competition Committee and Scientific Committee have decided to implement age restrictions for CSP-J/S participants:

Certification applicants must be at least 12 years old by September 1 (exclusive) of the current year, applicable to both the first and second rounds of CSP-J/S. The same rule applies to participation in NOI-related competitions.

This policy takes effect immediately.

[Announcement issued]

China Computer Federation

February 13, 2025

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To ensure the fairness, standardization, and seriousness of the NOI competition, and to prevent participants from obtaining eligibility through improper actions such as inter-provincial school transfers, the CCF NOI Competition Committee and the Scientific Committee hereby establish the following supplementary regulations:

During their high school years, participants may represent only one province in the NOI National Competition. Specifically, the province chosen by a participant during their first NOI National Competition in high school shall serve as their fixed represented province and cannot be altered thereafter.

These regulations apply solely to the eligibility of official contestants in the NOI National Competition and shall take effect immediately upon release.

China Computer Federation (CCF)

February 13, 2025