Computer Science – Computational Geometry
Scientific paper
2003-05-16
Computer Science
Computational Geometry
14 pages, 6 figures, Latex; revised for journal version, to appear in Computational Geometry: Theory and Applications. Extende
Scientific paper
We consider the one-round Voronoi game, where player one (``White'', called ``Wilma'') places a set of n points in a rectangular area of aspect ratio r <=1, followed by the second player (``Black'', called ``Barney''), who places the same number of points. Each player wins the fraction of the board closest to one of his points, and the goal is to win more than half of the total area. This problem has been studied by Cheong et al., who showed that for large enough $n$ and r=1, Barney has a strategy that guarantees a fraction of 1/2+a, for some small fixed a. We resolve a number of open problems raised by that paper. In particular, we give a precise characterization of the outcome of the game for optimal play: We show that Barney has a winning strategy for n>2 and r>sqrt{2}/n, and for n=2 and r>sqrt{3}/2. Wilma wins in all remaining cases, i.e., for n>=3 and r<=sqrt{2}/n, for n=2 and r<=sqrt{3}/2, and for n=1. We also discuss complexity aspects of the game on more general boards, by proving that for a polygon with holes, it is NP-hard to maximize the area Barney can win against a given set of points by Wilma.
Fekete Sandor P.
Meijer Henk
No associations
LandOfFree
The one-round Voronoi game replayed does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The one-round Voronoi game replayed, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The one-round Voronoi game replayed will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-545260