BFS-handouts-2

BFS-handouts-2 - Breadth-First Search 3/13/2006 1:42 AM...

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Breadth-First Search 3/13/2006 1:42 AM 1 3/13/2006 1:42 AM Breadth-First Search 1 Breadth-First Search C B A E D L 0 L 1 F L 2 3/13/2006 1:42 AM Breadth-First Search 2 Outline and Reading Breadth-first search (§6.3.3) ± Algorithm ± Example ± Properties ± Analysis ± Applications DFS vs. BFS (§6.3.3) ± Comparison of applications ± Comparison of edge labels
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Breadth-First Search 3/13/2006 1:42 AM 2 3/13/2006 1:42 AM Breadth-First Search 3 Breadth-First Search Breadth - first search (BFS) is a general technique for traversing a graph A BFS traversal of a graph G ± Visits all the vertices and edges of G ± Determines whether G is connected ± Computes the connected components of G ± Computes a spanning forest of G BFS on a graph with n vertices and m edges takes O ( n + m ) time BFS can be further extended to solve other graph problems ± Find and report a path with the minimum number of edges between two given vertices ± Find a simple cycle, if there is one 3/13/2006 1:42 AM Breadth-First Search 4 BFS Algorithm
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This note was uploaded on 09/10/2009 for the course CS 401 taught by Professor Cs401 during the Spring '08 term at Illinois Tech.

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BFS-handouts-2 - Breadth-First Search 3/13/2006 1:42 AM...

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