Path Puzzles: Discrete Tomography with a Path Constraint is Hard

10 Feb 2019  ·  Bosboom Jeffrey, Demaine Erik D., Demaine Martin L., Hesterberg Adam, Kimball Roderick, Kopinsky Justin ·

We prove that path puzzles with complete row and column information--or equivalently, 2D orthogonal discrete tomography with Hamiltonicity constraint--are strongly NP-complete, ASP-complete, and #P-complete. Along the way, we newly establish ASP-completeness and #P-completeness for 3-Dimensional Matching and Numerical 3-Dimensional Matching...

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