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A local limit theorem for Quicksort key comparisons via multi-round smoothing

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 نشر من قبل Oliver Riordan
 تاريخ النشر 2017
  مجال البحث
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As proved by Regnier and Rosler, the number of key comparisons required by the randomized sorting algorithm QuickSort to sort a list of $n$ distinct items (keys) satisfies a global distributional limit theorem. Fill and Janson proved results about the limiting distribution and the rate of convergence, and used these to prove a result part way towards a corresponding local limit theorem. In this paper we use a multi-round smoothing technique to prove the full local limit theorem.

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