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    My Submission :

    select c.company_code as company_code, c.founder as founder, count(distinct lead_manager_code) as lead_managers , count(distinct senior_manager_code) as senior_managers, count(distinct manager_code) as managers, count(distinct employee_code) as employees from employee e left join company c on c.company_code=e.company_code group by c.company_code,c.founder order by c.company_code asc;