Conflict-Free Coloring of points on a line with respect to a set of intervals

  • Authors:
  • Matthew J. Katz;Nissan Lev-Tov;Gila Morgenstern

  • Affiliations:
  • Department of Computer Science, Ben-Gurion University, Israel;Department of Computer Science, Ben-Gurion University, Israel;Department of Computer Science, Ben-Gurion University, Israel

  • Venue:
  • Computational Geometry: Theory and Applications
  • Year:
  • 2012

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Abstract

We present approximation algorithms for CF-coloring of points on a line with respect to a given set of intervals. For the restricted case where no two intervals have a common right endpoint, we present a 2-approximation algorithm, and, for the general case where intervals may share a right endpoint, we present a 4-approximation algorithm. The running time of both algorithms is O(nlogn).