Zhenguo Chen@ZhenguoFollow BadgesProblem SolvingCPPJavaDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork ExperienceZhenguo has not updated employment details yet.EducationZhenguo has not updated education details yet.LinksZhenguo has not updated links details yet. SkillsZhenguo has not updated skills details yet.