Dongjin Sohn@dj_sohnSouth KoreaFollow BadgesProblem SolvingCPPDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillCertificate: C++ (Basic)VerifiedskillWork Experiencedj_sohn has not updated employment details yet.Educationdj_sohn has not updated education details yet.