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happybob

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Accepted problems：32 problems

831 1177 1185 1288 1454 2352 4316 4577 4890 4891 4914 4924 5016 5017 5019 5020 5098 8598 9432 9463 9634 9974 11272 11274 12173 12559 12571 13079 13080 13082 13083 21858

Tried problems：8 problems

1139 1441 5100 10134 11282 13081 13084 21860

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Virtual Participations：3 contests

Name	Start time
IOI 2021 中国国家集训队作业	2025-08-06 21:33:35
(China) National Olympiad in Informatics 2025 Day 2	2025-08-03 08:00:01
(China) National Olympiad in Informatics 2025 Day 1	2025-07-27 08:00:20