Hadrian Gunawan@hadriangunawan11IndonesiaFollow BadgesProblem SolvingCPPJavaPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencehadriangunawan11 has not updated employment details yet.Educationhadriangunawan11 has not updated education details yet.