1. Consider the following graph. a. Write down the adjacency matrix and adjacency lists specifying this...
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1. Consider the following graph. a. Write down the adjacency matrix and adjacency lists specifying this graph. (Assume that the matrix rows and columns and vertices in the adjacency lists follow in the alphabetical order of the vertex labels.) b. Starting at vertex a and resolving ties by the vertex alphabetical order, traverse the graph by depth-first search and construct the corresponding depth-first search tree. Give the order in which the vertices were reached for the first time (pushed onto the traversal stack) and the order in which the vertices became dead ends (popped off the stack). 2. If we define sparse graphs as graphs for which |E| € O(|V]), which implemen- tation of DFS will have a better time efficiency for such graphs, the one that uses the adjacency matrix or the one that uses the adjacency lists? 3. Let G be a graph with n vertices and m edges. a. True or false: All its DFS forests (for traversals starting at different ver- tices) will have the same number of trees? b. True or false: All its DFS forests will have the same number of tree edges and the same number of back edges? 4. Traverse the graph of Problem 1 by breadth-first search and construct the corresponding breadth-first search tree. Start the traversal at vertex a and resolve ties by the vertex alphabetical order. 1. Consider the following graph. a. Write down the adjacency matrix and adjacency lists specifying this graph. (Assume that the matrix rows and columns and vertices in the adjacency lists follow in the alphabetical order of the vertex labels.) b. Starting at vertex a and resolving ties by the vertex alphabetical order, traverse the graph by depth-first search and construct the corresponding depth-first search tree. Give the order in which the vertices were reached for the first time (pushed onto the traversal stack) and the order in which the vertices became dead ends (popped off the stack). 2. If we define sparse graphs as graphs for which |E| € O(|V]), which implemen- tation of DFS will have a better time efficiency for such graphs, the one that uses the adjacency matrix or the one that uses the adjacency lists? 3. Let G be a graph with n vertices and m edges. a. True or false: All its DFS forests (for traversals starting at different ver- tices) will have the same number of trees? b. True or false: All its DFS forests will have the same number of tree edges and the same number of back edges? 4. Traverse the graph of Problem 1 by breadth-first search and construct the corresponding breadth-first search tree. Start the traversal at vertex a and resolve ties by the vertex alphabetical order.
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A Adjacency Matrix The adjacency matrix for this graph is given below a b c a 0 1 1 b 1 0 1 c 1 1 0 ... View the full answer
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