xiangyun kong@kongl123Follow BadgesProblem SolvingCPPDays of CodeDays ofStatistics CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: C++ (Basic)VerifiedskillWork Experiencekongl123 has not updated employment details yet.Educationkongl123 has not updated education details yet.Linkskongl123 has not updated links details yet. Skillskongl123 has not updated skills details yet.