박병국 @pakbk456Follow BadgesProblem SolvingJavaDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencepakbk456 has not updated employment details yet.Educationpakbk456 has not updated education details yet.Linkspakbk456 has not updated links details yet. Skillspakbk456 has not updated skills details yet.