question: public static < K > byte [ ] generate ( Set < K > set , UniversalHash < K > hash ) { ArrayList < K > list = new ArrayList < K > ( ) ; list . addAll ( set ) ; ByteArrayOutputStream out = new ByteArrayOutputStream ( ) ; int seed = RANDOM . nextInt ( ) ; out . write ( seed > > > 24 ) ; out . write ( seed > > > 16 ) ; out . write ( seed > > > 8 ) ; out . write ( seed ) ; generate ( list , hash , 0 , seed , out ) ; return compress ( out . toByteArray ( ) ) ; }
target:  Generate the minimal perfect hash function data from the given set of integers.