Wskaźnik pierwszego elementu tablicy struktur

cout << "Podaj wielkosc grupy";
int class_size;
cin >> class_size;
while( cin.get() != '\n' )
     continue;

cout << class_size; //tu sie dowiem jaka wartosc
student * ptr_stu = new student[ class_size ];
int entered = getinfo( ptr_stu, class_size );
for( int i = 0; i < entered; i++ )
{
   
    display1( ptr_stu[ i ] );
    display2( & ptr_stu[ i ] );
   
}
display3( ptr_stu, entered );
delete[] ptr_stu;
cout << "Gotowe\n";
return 0;
}
int getinfo( student pa[], int n )
{ cout << n; //i tu
int count = 0;
for( int i = 0; i < n; i++ )
{
    cout << "Podaj Imie i Nazwisko studenta:";
    cin.get( pa->fullname, SLEN ).get();
    cout << "Podaj Hobby:\n";
    cin.get( pa->hobby, SLEN ).get();
    count++;
   
}

return count;
}