1. History of submissions
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Sergey Siden

@serg_1

Ukraine, Nizhin

Joined Mar 2017

World Rank: #84600 (0.1 points)

Activity over the last year

Effectiveness

 Problems solved
4
 Solutions submitted
28

Problems

List of solved classical problems:

AGGRCOW
BALLSUM
MLASERP
NICEDAY

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