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kovalov.ryv
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kostia smernov
Last visit 12 days ago
Ukraine
Joined August, 2017
Rank
1139
Solved problems
464
Submissions
1277
Accepted submits
502
Recently submitted problems
10
Gardener
4238 / 6016
910
The arithmetic mean of positive
12557 / 14160
1327
Rooks on a chessboard
1642 / 2118
