Simple use of multi sized array

Here is a simple and easiest way to implement this function in c++:  int   designerPdfViewer ( vector < int >   h ,   string   word )   {      vector < int >   height ;      for ( int   i = 0 ;   i < word . length ();   i ++){          char   ch =   word . at ( i );          int   l = ch - 97 ;          cout << l << " " ;          height . push_back ( h [ l ]);      }      int   max =* max_element ( height . begin (),   height . end ());      return   max * word . length (); }