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Unformatted text preview: 2 3 4 y y d(y) = 3 z z d(z) = 4 Shortest paths Shortest paths Couple of remarks The Dijkstra’s algo does not explicitly compute the shortest path Can maintain “shortest path tree” separately Dijkstra’s algorithm does not work with negative weights Left as an exercise Rest of Today’s agenda Prove the correctness of Dijkstra’s Algorithm Runtime analysis of Dijkstra’s Algorithm Reading Assignment Sec 4.4 of [KT] Building a fiber network Lay down fibers to connect n locations All n locations should be connected Laying down a fiber costs money What is the cheapest way to lay down the fibers?...
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 Fall '11
 RUDRA
 Graph Theory, Shortest path problem, @10, 2 2 w, 100 5 w

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