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Classifying edges by breadth-first search A depth-first

Introduction to Algorithms | 3rd Edition | ISBN: 9780262033848 | Authors: Thomas H. Cormen ISBN: 9780262033848 130

Solution for problem 22-1 Chapter 22

Introduction to Algorithms | 3rd Edition

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Introduction to Algorithms | 3rd Edition | ISBN: 9780262033848 | Authors: Thomas H. Cormen

Introduction to Algorithms | 3rd Edition

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21
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Problem 22-1

Classifying edges by breadth-first search A depth-first forest classifies the edges of a graph into tree, back, forward, and cross edges. A breadth-first tree can also be used to classify the edges reachable from the source of the search into the same four categories. a. Prove that in a breadth-first search of an undirected graph, the following properties hold: 1. There are no back edges and no forward edges. 2. For each tree edge .u; /, we have :d D u:d C 1. 3. For each cross edge .u; /, we have :d D u:d or :d D u:d C 1. b. Prove that in a breadth-first search of a directed graph, the following properties hold: 1. There are no forward edges. 2. For each tree edge .u; /, we have :d D u:d C 1. 3. For each cross edge .u; /, we have :d u:d C 1. 4. For each back edge .u; /, we have 0 :d u:d.

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Step 1 of 3

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Chapter 22, Problem 22-1 is Solved
Step 3 of 3

Textbook: Introduction to Algorithms
Edition: 3
Author: Thomas H. Cormen
ISBN: 9780262033848

The full step-by-step solution to problem: 22-1 from chapter: 22 was answered by , our top Engineering and Tech solution expert on 11/10/17, 05:55PM. Since the solution to 22-1 from 22 chapter was answered, more than 245 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Introduction to Algorithms, edition: 3. This full solution covers the following key subjects: edges, edge, breadth, search, tree. This expansive textbook survival guide covers 35 chapters, and 151 solutions. The answer to “Classifying edges by breadth-first search A depth-first forest classifies the edges of a graph into tree, back, forward, and cross edges. A breadth-first tree can also be used to classify the edges reachable from the source of the search into the same four categories. a. Prove that in a breadth-first search of an undirected graph, the following properties hold: 1. There are no back edges and no forward edges. 2. For each tree edge .u; /, we have :d D u:d C 1. 3. For each cross edge .u; /, we have :d D u:d or :d D u:d C 1. b. Prove that in a breadth-first search of a directed graph, the following properties hold: 1. There are no forward edges. 2. For each tree edge .u; /, we have :d D u:d C 1. 3. For each cross edge .u; /, we have :d u:d C 1. 4. For each back edge .u; /, we have 0 :d u:d.” is broken down into a number of easy to follow steps, and 161 words. Introduction to Algorithms was written by and is associated to the ISBN: 9780262033848.

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Classifying edges by breadth-first search A depth-first