how do i get this program to accurately display the amount of activities there are. please show in ide

ts #include vector-h" or help ources leaders 3 sing nanespace std; vectorstring vectozs::getGym retorn gym { void vectors: :setGym vector, string) vectors:gym gym: gym) 10 11 int vectors::getActivitiesO 12 return activities 13 14 void vectors::setActivities (int activities) 15 vectors::activities activities 16 17 vectors::vectors) 19 20 21 ostreams operatorcc(ostreams os, const vectors &v) E 23 os