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cosf

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Accepted problems：14 problems

1980 1991 4902 6647 6807 7509 8005 9606 9698 12144 12412 13079 13082 13906

Tried problems：5 problems

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Virtual Participations：2 contests

Name	Start time
(China) National Olympiad in Informatics 2025 Day 2	2025-08-28 07:55:17
(China) National Olympiad in Informatics 2025 Day 1	2025-08-26 07:47:31