driver code
public static void main ( String args [ ] ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; int arr [ ] = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) arr [ i ] = sc . nextInt ( ) ; System . out . println ( LongIncrConseqSubseq ( arr , n ) ) ; } }