/in/foo.cc: In member function 'void Array::insert(int)':
/in/foo.cc:23:9: error: 'sz' was not declared in this scope; did you mean 'size'?
   23 |         sz++;
      |         ^~
      |         size
/in/foo.cc: In member function 'void Array::print()':
/in/foo.cc:27:29: error: 'sz' was not declared in this scope; did you mean 'size'?
   27 |         for (int i = 0; i < sz; i++)
      |                             ^~
      |                             size