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black_men
Niger
Niger
Joined Nov 12, 2025
Achievements (1)
Problem Solver
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black_men solved problem Fibonacci subsequence (#2363) on 2 attempt11 days ago
black_men solved problem Fibonacci Again! (#1469) on first attempt13 days ago
black_men solved problem Fibonacci sequence (#2031) on first attempt13 days ago
black_men solved problem Fibonacci (#4730) on first attempt13 days ago
black_men solved problem Degree of symmetry (#19) on 2 attempt14 days ago
black_men solved problem Warm-up (#1160) on 3 attempt18 days ago
black_men solved problem Oddities (#6199) on first attempt18 days ago
black_men solved problem Maximum GCD (#2631) on 3 attempt18 days ago
black_men solved problem Squares - 2 (#146) on first attempt19 days ago
black_men solved problem Boxes (#1183) on 4 attempt21 days ago
black_men solved problem Nicholas Problem (#513) on 3 attempt25 days ago
black_men solved problem Treasure Hunter (#1151) on first attempt26 days ago
black_men solved problem Lucky Number (#1123) on 2 attempt27 days ago
black_men solved problem Olympiad (#4192) on 4 attempt1 month ago
black_men solved problem Factorials (#704) on 2 attempt1 month ago
black_men solved problem Number of divisors (#2862) on 2 attempt1 month ago
black_men solved problem Book (#577) on 2 attempt1 month ago
black_men solved problem City Festival (#637) on first attempt1 month ago
black_men solved problem Dragon (#16) on first attempt2 months ago
black_men solved problem Gardener (#10) on first attempt2 months ago
black_men solved problem Match’s model (#3) on first attempt2 months ago
black_men has joined contest Educational Round #82 months ago
black_men solved problem Page Numbering (#109) on 3 attempt2 months ago
black_men solved problem Mytsyk and the flowers (#63) on first attempt2 months ago
black_men solved problem Cleaning the playground (#280) on 2 attempt2 months ago