for (size_t k{0}; k < 12; k++){ for (size_t l{0}; l < 5; l++){ if (weeklyAppointments[k][l]->empty() != false){ cout << weeklyAppointments[k][l]->get_patient_name() << "\t\t\t\t"; } else{ cout << *(*(weeklyAppointments+(k))+(l)) } }