Train Marshalling Is Fixed Parameter Tractable

نویسندگان

  • Leo Brueggeman
  • Michael R. Fellows
  • Rudolf Fleischer
  • Martin Lackner
  • Christian Komusiewicz
  • Ioannis Koutis
  • Andreas Pfandler
  • Frances A. Rosamond
چکیده

The train marshalling problem is about reordering the cars of a train using as few auxiliary rails as possible. The problem is known to be NP-complete. We show that it is fixed parameter tractable (FPT) with the number of auxiliary rails as parameter.

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تاریخ انتشار 2012