Nguyen Duy Hung (Luong Giac Tu)@worldwide_wwwwVietnamFollow BadgesProblem SolvingJavaDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experienceworldwide_wwww has not updated employment details yet.Educationworldwide_wwww has not updated education details yet.