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chetvertak_oleg
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Четвертак Олег
chetvertak_oleg
Explorer
Ukraine
Ukraine
Joined Dec 12, 2021
Achievements (54)
Hello WorldEasy StartTough NutHalfway ThereSnake TamerEolymp Cup ParticipantExplorer
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984
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chetvertak_oleg earned achievement Explorer1 month ago
chetvertak_oleg has joined contest Виток 6, Шаг 4 - Выпуклая оболочка + заметающая прямая2 years ago
chetvertak_oleg has joined contest Eolymp Cup #12 years ago
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