The height of a random binary search tree

  • Authors:
  • Bruce Reed

  • Affiliations:
  • McGill University, Montreal Quebec, Canada and CNRS, Paris, France

  • Venue:
  • Journal of the ACM (JACM)
  • Year:
  • 2003

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Abstract

Let Hn be the height of a random binary search tree on n nodes. We show that there exist constants α = 4.311… and β = 1.953… such that E(Hn) = αln n − βln ln n + O(1), We also show that Var(Hn) = O(1).