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k909mark
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Марк Козир
k909mark
Joined Sep 5, 2022
OverviewPosts
Problems55
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k909mark has joined contest Blitz Round #41 month ago
k909mark solved problem Saucepans and lids (#7335) on 7 attempt1 month ago
k909mark has joined contest Educational Round #31 month ago
k909mark has joined contest Weekend Practice #121 month ago
k909mark solved hidden problem on 8 attempt2 months ago
k909mark solved problem Season (#923) on 2 attempt2 months ago
k909mark solved problem What type of triangle? (#905) on 6 attempt2 months ago
k909mark solved problem Parity of the number (#8863) on 2 attempt2 months ago
k909mark solved problem Sign of a number (#8862) on 3 attempt2 months ago
k909mark solved problem The largest of two (#8868) on first attempt2 months ago
k909mark solved problem Poor Miku (#12214) on 2 attempt2 months ago
k909mark solved problem Four-digit Armstrong numbers (#8642) on 3 attempt2 months ago
k909mark solved problem Egypt (#1265) on 2 attempt2 months ago
k909mark has joined contest Educational Round #12 months ago
k909mark solved problem Rectangular or not? (#915) on 3 attempt3 months ago
k909mark solved problem Water and Ice (#8611) on 2 attempt3 months ago
k909mark solved problem Quotient and remainder (#8837) on first attempt3 months ago
k909mark solved problem Sum of squares (#519) on 9 attempt3 months ago
k909mark solved problem Sum of two integers (#8804) on first attempt2 years ago
k909mark solved problem Olympiad in Hogwarts (#4857) on first attempt3 years ago