Mark Li@mark_haoxiangChinaFollow BadgesProblem SolvingCPPJavaPython CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Python (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencemark_haoxiang has not updated employment details yet.Educationmark_haoxiang has not updated education details yet.