Q&A for experienced flyers, pilots, and builders of drones and model aircraft
select count(*) from posts a, posts b WHERE a.Tags IN ('<java>', '<python>', '<c++>') and a.AcceptedAnswerId IS NOT NULL and a.AcceptedAnswerId = b.Id and (a.Body LIKE '%library%' or a.Body LIKE '%libraries%' or a.Body LIKE '%API%') ;