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.
Oisin Johnston
@ojohnsto
Ireland
Badges
CPP
Java
Python
Days of Code
Certifications
ojohnsto has not earned any certificates yet.
Work Experience
ojohnsto has not updated employment details yet.
Education
ojohnsto 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