21020238 Hoàng Trọng Tùng@h21020238Follow BadgesProblem SolvingCPPJavaDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experienceh21020238 has not updated employment details yet.EducationUETComputer NetworkingLinksh21020238 has not updated links details yet. Skillsh21020238 has not updated skills details yet.