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Unformatted text preview: u needs to be done before v means (u,v) edge Directed graphs Adjacency matrix is not symmetric Adjacency matrix is not symmetric Each vertex has two lists in Adj. list rep. Each vertex has two lists in Adj. list rep. Directed Acyclic Graph (DAG) No directed cycles Precedence relationships are consistent Precedence relationships are consistent Topological Sorting of a DAG Order the vertices so that all edges go “forward” Topological sorting DAG Topological sorting DAG HW 4 due today Q1, Q2 and Q3 in separate piles I will not take any HW after 1:15pm Today’s agenda DAG topological sorting A notation announcement I will (try to) not use u from now on Run of TopOrd algorithm...
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 Fall '11
 RUDRA
 Graph Theory, Directed acyclic graph, separate piles

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