1. History of submissions
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Cheng Cheng

@ccheng666

United States, Urbana

Joined Apr 2018

World Rank: #31426 (0.8 points)

Institution: University of Illinois at Urbana-Champaign

Activity over the last year

Effectiveness

 Problems solved
5
 Solutions submitted
10

Problems

List of solved classical problems:

KPSUM
NY10B
OPTM
SUBLEX
TORNJEVI

TODO list of classical problems:

RUNAWAY

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