Homework Answers
A digraph is orientable If there exists an orientation that makes D strongly connected.there exists a directed path between each pair of vertices.
Robin's theorem states that, The graph that have strong orientation are exactly 2- edge connected graph.
G is orientable if and only if G is connected and has no bridge.
Given graph is connected but there is edge joining vertex A and E which is bridge.
It has a briedge hence cannot be orientable
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(8 points) Consider the graph shown below. If the graph is orientable, the orient the edges...
Problem 3 (15 points) Consider the graph shown on the right. Find the strongly connected componen...
Problem 3 (15 points) Consider the graph shown on the right. Find the strongly connected components of the graph. For full credit, a) (6 points) Run DFS on the reverse graph, showing the discovery and finish times of each 10 vertex. b) (6 points) Run DFS again, to discover the strongly connected components. What is the 15 order the components are discovered? 12 c) (3 points) Draw the DAG of the components. What is the minimum number of edges that...
Graphs (15 points) 14. For the following graph (8 points): a. Find all the edges that...
Graphs (15 points) 14. For the following graph (8 points): a. Find all the edges that are incident of v1: b. Find all the vertices that are adjacent to v3: C. Find all the edges that are adjacent to e1: d. Find all the loops: e. Find all the parallel edges: f. Find all the isolated vertices: g. Find the degree of v3: h. Find the total degree of the graph: e3 e2 V2 VI 26 e4 e7 es 05...
G1: I can create a graph given information or rules about vertices and edges. I can...
G1: I can create a graph given information or rules about vertices and edges. I can give examples of graphs having combinations of various properties and examples of graphs of special (" named”) types. 1. Draw a graph G with • V(G) = {a,b,c,d,e,f}, • deg(d) = 2, • a and f are neighbors, • {b,d} & E(G), G is simple, • K4 is a subgraph of G. 2. Draw the graph C7. 3. Answer each question about the graph...
Answer all the BLANKS from A to N please. 7. For the graph shown below at...
Answer all the BLANKS from A to N please.
7. For the graph shown below at the bottom, answer the following questions a) Is the graph directed or undirected? b) What is the deg ()? c) Is the graph connected or unconnected? If it is not connected, give an example of why not d) ls the graph below an example of a wheel? e) Any multiple edges? 0 What is the deg'(E)? ) What is the deg (B)? h) Is...
1) Suppose that a directed graph contains the following edges. Find the strongly connected components. {(h,...
1) Suppose that a directed graph contains the following edges. Find the strongly connected components. {(h, i), (i, j), (j, k), (k, h), (l, m), (m, n), (n, p), (p, l), (f, i), (c, e), (j, b), (k, l), (a, b), (b, c), (c, a), (d, e), (e, f), (f, g), (g, d)}. a) How many vertices are there in the component having the smallest number of vertices? b) How many vertices are there in the component having the second...
Let G be a directed graph on n vertices and maximum possible directed edges; assume that...
Let G be a directed graph on n vertices and maximum possible directed edges; assume that n ≥ 2. (a) How many directed edges are in G? Present such a digraph when n = 3 assuming vertices are 1, 2, and 3. You do not have to present a diagram, if you do not want to; you can simply present the directed edges as a set of ordered pairs. b) Is G, as specified in the problem, reflexive? Justify briefly....
This question is from my discrete structures class Consider a graph with the following edges: {a,b}...
This question is from my discrete structures class Consider a graph with the following edges: {a,b} {a,d} {a,e} {a,h} {a,j} {b,c} {b,g} {c,d} {c,e} {c,h} {d,f} {e,g} {f,g}: {f,i} {g,h} {h,i} {i,j} Provide a valid coloring of the nodes in the above graph that uses as few colors as you believe possible.
8. For each of the following, either draw a undirected graph satisfying the given criteria or explain why it cannot be done. Your graphs should be simple, i.e. not having any multiple edges (more tha...
8. For each of the following, either draw a undirected graph satisfying the given criteria or explain why it cannot be done. Your graphs should be simple, i.e. not having any multiple edges (more than one edge between the same pair of vertices) or self-loops (edges with both ends at the same vertex). [10 points] a. A graph with 3 connected components, 11 vertices, and 10 edges. b. A graph with 4 connected components, 10 vertices, and 30 edges. c....
Make sure to answer part a and b. Consider the graph below. a. (5 points) Create...
Make sure to answer part a and b. Consider the graph below. a. (5 points) Create an adjacency matrix. b. (5 points) Can this graph be topologically sorted? If so, what are the vertice topological order if you use the decrease-by-one (source) method to topologica sort and resolve ties in ascending order alphabetically? (В E С F D A
5 Network Flow, 90p. Consider the below flow network, with s the source and t the sink. 5 4 1. (10p) Draw a flow with value 8. (You may write it on top of the edges in the graph above, or draw a...
5 Network Flow, 90p. Consider the below flow network, with s the source and t the sink. 5 4 1. (10p) Draw a flow with value 8. (You may write it on top of the edges in the graph above, or draw a new graph.) You are not required to show how you construct the flow (though it may help you to apply say the Edmonds-Karp algorithm). 2. (5p) List a cut with capacity 8. (You may draw it in...
Problem 3 (15 points) Consider the graph shown on the right. Find the strongly connected components of the graph. For full credit, a) (6 points) Run DFS on the reverse graph, showing the discovery and finish times of each 10 vertex. b) (6 points) Run DFS again, to discover the strongly connected components. What is the 15 order the components are discovered? 12 c) (3 points) Draw the DAG of the components. What is the minimum number of edges that...
Graphs (15 points) 14. For the following graph (8 points): a. Find all the edges that are incident of v1: b. Find all the vertices that are adjacent to v3: C. Find all the edges that are adjacent to e1: d. Find all the loops: e. Find all the parallel edges: f. Find all the isolated vertices: g. Find the degree of v3: h. Find the total degree of the graph: e3 e2 V2 VI 26 e4 e7 es 05...
G1: I can create a graph given information or rules about vertices and edges. I can give examples of graphs having combinations of various properties and examples of graphs of special (" named”) types. 1. Draw a graph G with • V(G) = {a,b,c,d,e,f}, • deg(d) = 2, • a and f are neighbors, • {b,d} & E(G), G is simple, • K4 is a subgraph of G. 2. Draw the graph C7. 3. Answer each question about the graph...
Answer all the BLANKS from A to N please.
7. For the graph shown below at the bottom, answer the following questions a) Is the graph directed or undirected? b) What is the deg ()? c) Is the graph connected or unconnected? If it is not connected, give an example of why not d) ls the graph below an example of a wheel? e) Any multiple edges? 0 What is the deg'(E)? ) What is the deg (B)? h) Is...
8. For each of the following, either draw a undirected graph satisfying the given criteria or explain why it cannot be done. Your graphs should be simple, i.e. not having any multiple edges (more than one edge between the same pair of vertices) or self-loops (edges with both ends at the same vertex). [10 points] a. A graph with 3 connected components, 11 vertices, and 10 edges. b. A graph with 4 connected components, 10 vertices, and 30 edges. c....
Make sure to answer part a and b. Consider the graph below. a. (5 points) Create an adjacency matrix. b. (5 points) Can this graph be topologically sorted? If so, what are the vertice topological order if you use the decrease-by-one (source) method to topologica sort and resolve ties in ascending order alphabetically? (В E С F D A
5 Network Flow, 90p. Consider the below flow network, with s the source and t the sink. 5 4 1. (10p) Draw a flow with value 8. (You may write it on top of the edges in the graph above, or draw a new graph.) You are not required to show how you construct the flow (though it may help you to apply say the Edmonds-Karp algorithm). 2. (5p) List a cut with capacity 8. (You may draw it in...
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