The HAT structure has two levels [Sitarski, Dr. Dobb's Journal 9/96]. The top level consists of a single memory block pointing … All memory blocks have the same size which … When the top memory block becomes full, you … the amortized performance is still constant. … Only the last bottom block and the top … as in linked lists or array doubling.
Google-1
Google-2
Copyright clearance needed for quotation.