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user539653
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Богдан Ковальчук
user539653
Joined Nov 15, 2024
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2026
user539653 solved problem A+B=C (#376) on 6 attempt2 months ago
user539653 solved problem Creating an Array (#263) on first attempt2 months ago
user539653 solved problem Shops (#262) on first attempt2 months ago
user539653 has joined contest UOI 2024. II stage. Day 12 months ago
user539653 solved problem Family (#375) on first attempt2 months ago
user539653 has joined contest UOI 2025. II stage. Day 12 months ago
user539653 solved hidden problem on first attempt2 months ago
user539653 solved hidden problem on first attempt2 months ago
user539653 solved hidden problem on first attempt2 months ago
user539653 solved hidden problem on 9 attempt2 months ago
user539653 solved hidden problem on first attempt2 months ago
user539653 solved hidden problem on 2 attempt2 months ago
user539653 solved hidden problem on 5 attempt2 months ago
user539653 has joined contest Тренувальний тур II етапу Всеукраїнської олімпіади з інформатики2 months ago
user539653 has joined contest Unknown1 year ago
user539653 has joined contest Тренувальний тур I етапу Всеукраїнської олімпіади з інформатики1 year ago