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Users
kovalov.ryv
Profile
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Problems
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kostia smernov
Last visit apr 13, 2024
Ukraine
Joined August, 2017
Rank
1139
Solved problems
464
Submissions
1277
Accepted submits
502
Recently submitted problems
10
Gardener
4256 / 6041
910
The arithmetic mean of positive
12572 / 14175
1327
Rooks on a chessboard
1649 / 2125