Pavel Shalin@xzzyyyRussian FederationFollow BadgesProblem SolvingCPPDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencexzzyyy has not updated employment details yet.Educationxzzyyy has not updated education details yet.