2012
DOI: 10.1016/j.dam.2011.08.010
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A linear-time algorithm for the longest path problem in rectangular grid graphs

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Cited by 28 publications
(16 citation statements)
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“…For works on the longest paths in undirected graphs (random), refer to [25][26][27]. Algorithms for approximating the longest paths in grid graphs and meshes can be seen here [28][29][30][31][32]. There are methods that are based on the longest paths in random graphs (for example, see [25]) and search for the trees formed by probability processes [33,34].…”
Section: Related Workmentioning
confidence: 99%
“…For works on the longest paths in undirected graphs (random), refer to [25][26][27]. Algorithms for approximating the longest paths in grid graphs and meshes can be seen here [28][29][30][31][32]. There are methods that are based on the longest paths in random graphs (for example, see [25]) and search for the trees formed by probability processes [33,34].…”
Section: Related Workmentioning
confidence: 99%
“…In this paper, we present a sequential and a parallel algorithms for finding longest paths between two given vertices in rectangular grid graphs (meshes). Our algorithm has improved the previous algorithm [13] by reducing the number of partition steps from O(m + n) to only a constant.…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, Zhang and Liu [25] gave an approximation algorithm for the longest path problem in grid graphs and their algorithm runs in quadratic time. Also the authors in [13] has been studied the longest path problem for rectangular grid graphs and their algorithm is based on divide and conquer technique and runs in linear time. Some results of the grid graphs are investigated in [14,20].…”
Section: Introductionmentioning
confidence: 99%
“…Recently, Keshavarz-Kohjerdi and Bagheri [22] gave the necessary and sufficient conditions for the existence of Hamiltonian paths in alphabet grid graphs, and presented linear-time algorithms for finding Hamiltonian paths with two given endpoints in these graphs. Recently, Keshavarz-Kohjerdi et al [23] presented a linear-time algorithm for computing the longest path between any two given vertices in rectangular grid graphs. Reay and Zamfirescu [31] proved that all 2-connected, linear-convex triangular grid graphs except one special case contain Hamiltonian cycles.…”
Section: Introductionmentioning
confidence: 99%