Won Ji Yeon@wjy0218Follow BadgesProblem SolvingJavaDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencewjy0218 has not updated employment details yet.Educationwjy0218 has not updated education details yet.Linkswjy0218 has not updated links details yet. Skillswjy0218 has not updated skills details yet.