Rintaro Hasegawa@haserinFollow BadgesProblem SolvingCPP CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencehaserin has not updated employment details yet.EducationUniversity of Tokyo, TokyoLinksGithubhttps://github.com/h13oPortfolioh13o.com Skillshaserin has not updated skills details yet.