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User profile

chengch

Rating

1800

Contribution

0

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Rating changes

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Accepted problems：14 problems

4428 6442 6795 6804 6806 21650 21652 21739 21743 21790 21791 21792 21793 21794

Tried problems：3 problems

4233 8013 21795

Authored problems：0 problem

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Virtual Participations：0 contest

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