Katsutoshi Horie@hrekttsFollow BadgesProblem SolvingDays of CodeDays ofStatistics CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencehrektts has not updated employment details yet.Educationhrektts has not updated education details yet.Linkshrektts has not updated links details yet. Skillshrektts has not updated skills details yet.