tang yingjie@zeroTYJFollow BadgesProblem SolvingDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork ExperiencezeroTYJ has not updated employment details yet.EducationzeroTYJ has not updated education details yet.LinkszeroTYJ has not updated links details yet. SkillszeroTYJ has not updated skills details yet.