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@chenqifeng

China

Joined Feb 2006

World Rank: #10629 (3.3 points)

Activity over the last year

Effectiveness

 Problems solved
14
 Solutions submitted
90

Problems

List of solved classical problems:

ANGELS MMCUT
DISUBSTR RECTANGL
FRACTION REPEATS
GSS2 SEQPAR
MATH1 SUBST1
MDST SWAPS
MINDIST TEST

TODO list of classical problems:

CIRCLES VFMUL
QTREE

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