By D. S. Hirschberg
Communications of the ACM,
August 1976,
Vol. 19 No. 8, Pages 471-473
10.1145/360303.360334
Comments
A restriction on height-balanced binary trees is presented. It is seen that this restriction reduces the extra memory requirements by half (from two extra bits per node to one) and maintains fast search capabilities at a cost of increased time requirements for inserting new nodes.
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