Hiền Đoàn Thanh@doanthanhhienak1Viet NamFollow BadgesProblem SolvingCPPDays of CodeSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experiencedoanthanhhienak1 has not updated employment details yet.EducationOsaka UniversityComputer Science, BE