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_set_

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std::set<std::pair<oj,username> >sjy;

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Accepted problems：35 problems

113 122 403 1395 2835 3843 4214 4233 4677 4797 6372 6543 7451 7508 7646 7886 7999 8000 8017 8221 8383 8384 8385 8644 8650 8707 8708 8709 8710 8711 8712 10149 10224 13082 13083

Tried problems：7 problems

1838 2067 4410 4906 5024 7761 13084

Authored problems：0 problem

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Virtual Participations：1 contest

Name	Start time
(China) National Olympiad in Informatics 2025 Day 2	2025-07-18 14:00:40