We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
Сергей Ратушняк
@ratserg
Russia
Badges
ratserg has not unlocked any badges yet.
Certifications
ratserg has not earned any certificates yet.
Work Experience
ratserg has not updated employment details yet.
Education
ratserg has not updated education details yet.
Cookie support is required to access HackerRank
Seems like cookies are disabled on this browser, please enable them to open this website