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In this paper, we are interested in the number of red nodes in red-black trees. We first present an O(n2logn) time dynamic programming solution for computing r(n), the largest number of red internal nodes in a red-black tree on n keys. Then the algorithm is improved to some O(logn) time recursive and nonrecursive algorithms. Based on these improved algorithms we finally find a closed-form solution of r(n). © 2017 Elsevier B.V.
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Journal of Discrete Algorithms
ISSN: 1570-8667
Year: 2017
Volume: 43
Page: 81-94
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 2
ESI Highly Cited Papers on the List: 0 Unfold All
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Chinese Cited Count:
30 Days PV: 1
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