43 research outputs found

    On the exhaustive generation of convex permutominoes

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    A permutomino of size n is a polyomino determined by a pair of permutations of size n+1, such that they differ in each position. In this paper, after recalling some enumerative results about permutominoes, we give a first algorithm for the exhaustive generation of a particular class of permutominoes, the convex permutominoes, proving that its cost is proportional to the number of generated objects.Comment: 15 pages, 14 figure

    A STRATEGY FOR EXECUTING RELATIONAL QUERIES

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