static void update ( int BIT [ ] , int index , int n ) {
  int x = query ( BIT , index - 1 , n ) ;
  int value = x + 1 ;
  while ( index <= n ) {
    BIT [ index ] = Math . max ( BIT [ index ] , value ) ;
    index += index & ( - index ) ;
  }
}

static void update ( int BIT [ ] , int index , int n ) { int x = query ( BIT , index - 1 , n ) ; int value = x + 1 ; while ( index <= n ) { BIT [ index ] = Math . max ( BIT [ index ] , value ) ; index += index & ( - index ) ; } }
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