Duong Anh Quan@QuanlalaVietnamFollow BadgesProblem SolvingCPPJavaPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Java (Basic)VerifiedskillCertificate: Java (Intermediate)VerifiedskillWork ExperienceQuanlala has not updated employment details yet.EducationQuanlala has not updated education details yet.