Tight Bounds for Searching a Sorted Array of Strings

  • Authors:
  • Arne Andersson;Torben Hagerup

  • Affiliations:
  • -;-

  • Venue:
  • SIAM Journal on Computing
  • Year:
  • 2000

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Abstract

Given a k-character query string and an array of n strings arranged in lexicographical order, computing the rank of the query string among the n strings or deciding whether it occurs in the array requires the inspection of $$ \Theta\left( \frac {k\log {\log n}} {\log {\log {(4+\frac{k \log{\log n}}{\log n})}}}+k+\log n\right) $$ characters in the worst case.