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Sep 27, 2012 at 4:19 vote accept rajesh
Sep 27, 2012 at 4:19
Sep 23, 2012 at 15:31 comment added Nicholas Mancuso Ok, under your edit yes. I wasn't sure if the OP wanted optimal-time algorithm that gives (implied optimal) solution, or just an algorithm to give the optimal solution.
Sep 23, 2012 at 14:06 comment added JeffE "Shortest" already means "optimal".
Sep 22, 2012 at 18:00 comment added Nicholas Mancuso Having re-read the OP questions, I realize why the confusion arose. I have edited the answer accordingly.
Sep 22, 2012 at 18:00 history edited Nicholas Mancuso CC BY-SA 3.0
re-read question.
Sep 20, 2012 at 20:58 history edited Nicholas Mancuso CC BY-SA 3.0
deleted 10 characters in body
Sep 20, 2012 at 20:31 comment added Nicholas Mancuso @rizwanhudda, I should make clear that optimal in my answer, is with respect to the size/weight of the path, not in runtime.
Sep 20, 2012 at 19:25 comment added BlueRaja - Danny Pflughoeft You should also mention A*, which solves the same problem as Djikstra's but much faster, if you have a decent distance-heuristic available to you.
Sep 20, 2012 at 16:28 comment added rizwanhudda The Dijkstra's and Bellman Ford's are best known algorithms for graphs with Non-negative and negative edge weights respectively. But, has any one proved a non-trivial lower bound for these problems which matches the best known upper bound? If not, then these are not optimal.
Sep 20, 2012 at 15:16 history edited Nicholas Mancuso CC BY-SA 3.0
formatting.
Sep 20, 2012 at 15:03 history answered Nicholas Mancuso CC BY-SA 3.0