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ivan_hal
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Ivan
ivan_hal
Ukraine
Ukraine
Joined Nov 29, 2024
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ivan_hal solved hidden problem on first attempt8 hours ago
ivan_hal solved hidden problem on 2 attempt13 hours ago
ivan_hal solved hidden problem on first attempt13 hours ago
ivan_hal solved hidden problem on first attempt13 hours ago
ivan_hal solved problem Sakurako is Late (#348) on 7 attempt3 days ago
ivan_hal has joined contest UOI 2025. I stage3 days ago
ivan_hal has joined contest UOI 2018. Day 126 days ago
ivan_hal solved problem Cracow Sights (#405) on 2 attempt26 days ago
ivan_hal has joined contest UJGOI 2025. Day 126 days ago
ivan_hal has joined contest Тренувальний тур I етапу Всеукраїнської олімпіади з інформатики26 days ago
ivan_hal has joined contest UOI 2024. I stage. Kharkiv11 months ago