QIAO YANG@yangqiao0505ItalyFollow BadgesProblem SolvingDays of CodeC language CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: C (Basic)VerifiedskillCertificate: C (Intermediate)VerifiedskillCertificate: C (Advanced)VerifiedskillWork Experienceyangqiao0505 has not updated employment details yet.Educationyangqiao0505 has not updated education details yet.