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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