1. History of submissions
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Efremov Sergey

@s_efremov

Russian Federation

Joined Dec 2011

World Rank: #128057 (0 points)

Activity over the last year

Effectiveness

 Problems solved
4
 Solutions submitted
79

Problems

List of solved classical problems:

ADDREV
GUESSING
SAMER08F
TEST

TODO list of classical problems:

COINS MUL
FCTRL2

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