Jeffrey Yun@thisishaoyuFollow BadgesProblem SolvingCPPPythonDays of Code CertificationsCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencethisishaoyu has not updated employment details yet.EducationUniversity of California (UCLA), Los AngelesLinksLinkedinhttp://linkedin.com/in/haoyu-yun Skillsthisishaoyu has not updated skills details yet.