Path Puzzles: Discrete Tomography with a Path Constraint is Hard

Path Puzzles: Discrete Tomography with a Path Constraint is Hard

Path Puzzles are a type of logic puzzle introduced in Roderick Kimball’s 2013 book [5]. A puzzle consists of a (rectangular) grid of cells with two exits (or “doors”) on the boundary and numerical constraints on some subset of the rows and columns. A solution consists of a single non-intersecting path which starts and ends at two boundary doors and which passes through a number of cells in each...

removable partial denture with rotational path of insertion

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A Discrete Tomography Approach to Japanese Puzzles

Discrete Tomography (DT) is concerned with the reconstruction of binary images from their horizontal and vertical projections. In this paper we consider an evolutionary algorithm for computing such reconstructions. We show that the famous Japanese puzzles are a special case of a more general DT problem and successfully apply our algorithm to such puzzles.

Data Path Synthesis With Global Time Constraint

This paper presents an algorithm and its implementation for performing scheduling and operator allocation for data path synthesis. Tlte main advantage of this approach is that it is capable of handling global time constraint as compared to earlier systems[l] which expected the designer to artificially impose a time constraint on the individual blocks. This is achieved by judiciously distributin...

Multi Constraint Shortest Path Routing