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arXiv · 2008.13640

Sorting by Prefix Block-Interchanges

Anthony Labarre
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Abstract

We initiate the study of sorting permutations using prefix block-interchanges, which exchange any prefix of a permutation with another non-intersecting interval. The goal is to transform a given permutation into the identity permutation using as few such operations as possible. We give a 2-approximation algorithm for this problem, show how to obtain improved lower and upper bounds on the corresponding distance, and determine the largest possible value for that distance.

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Anthony Labarre. 2020-08-31. Sorting by Prefix Block-Interchanges. https://doi.org/10.4230/lipics.isaac.2020.55

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