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ivan_hal
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Ivan
ivan_hal
Ukraine
Joined Nov 29, 2024
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ivan_hal
solved hidden problem on first attempt
8 hours ago
ivan_hal
solved hidden problem on 2 attempt
13 hours ago
ivan_hal
solved hidden problem on first attempt
13 hours ago
ivan_hal
solved hidden problem on first attempt
13 hours ago
ivan_hal
solved problem
Sakurako is Late (#348)
on 7 attempt
3 days ago
ivan_hal
has joined contest
UOI 2025. I stage
3 days ago
ivan_hal
has joined contest
UOI 2018. Day 1
26 days ago
ivan_hal
solved problem
Cracow Sights (#405)
on 2 attempt
26 days ago
ivan_hal
has joined contest
UJGOI 2025. Day 1
26 days ago
ivan_hal
has joined contest
Тренувальний тур I етапу Всеукраїнської олімпіади з інформатики
26 days ago
ivan_hal
has joined contest
UOI 2024. I stage. Kharkiv
11 months ago