Sum of the O a. 2 O b. JE
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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There is also a pointer to a linked list of all vertices that are next to the vertex for each vertex. An adjacency list and a directed graph: An adjacency list requires E+V space, where E is the number of edges and V is the number of vertices.
The sum of the lengths of all the adjacency lists in an undirected graph is 2|E|, hence the total amount of memory required is O(V+E). The total of the list lengths in a directed graph is |E|.
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