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Data Structures Graphs Solution




Question 1 (20 points)







Starting from G, trace the operations of the Dijkstra’s weighted shortest path algorithm on the graph given in Figure 1.




Question 2 (15 points)







Starting from G, trace the operations of the Prim’s minimum spanning tree algorithm on the graph given in Figure 1.




Question 3 (15 points)







Trace the operations of Kruskal’s minimum spanning tree algorithm on the graph given in Figure 1.




Question 4 (15 points)







Starting from S, trace the operations of breadth-first traversal on the graph given in Figure 2.





































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Figure 2: A directed weighted graph.




Question 5 (20 points)







Given Figure 2 and starting from S,




Trace the operations of depth-first traversal.



Give the post-order numbers for all the nodes.



Give the pre-order numbers for all the nodes.



List the tree arcs, cross arcs, forward arcs, and backward arcs.



Question 6 (15 points)







Find a topological ordering of the graph given in Figure 3.

















































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Figure 3: An example DAG.






































































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