wu jian@wjian_99Follow BadgesProblem SolvingDays of CodeDays ofStatistics CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencewjian_99 has not updated employment details yet.Educationwjian_99 has not updated education details yet.Linkswjian_99 has not updated links details yet. Skillswjian_99 has not updated skills details yet.