Pinnian Chen

@nian_feng

China, Changsha

Institution: Changjun Middle School

History of submissions
(plaintext version)

Problems

List of solved classical problems:

BUSINESS QTREE4
GSS1 QTREE5
GSS2 QTREE6
GSS3 SERVICE
GSS4 TTM
HISTOGRA
NAPTIME

TODO list of classical problems:

GSS5
LIGHTIN
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