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A DAG has no cycles, but directed edges. Graphs can be dense (have more edges) or sparse (have a fewer edges). Most graphs are dense. The adjacency matrix is an array of arrays (a 2D array). An adjacency list is a linked list of linked lists.

A DAG has no cycles, but directed edges. Graphs can be dense (have more edges) or sparse (have a fewer edges). Most graphs are dense. The adjacency matrix is an array of arrays (a 2D array). An adjacency list is a linked list of linked lists.

Database System Concepts
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
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A DAG has no cycles, but directed edges. Graphs can be dense (have more edges) or sparse (have a fewer edges). Most graphs are dense. The adjacency matrix is an array of arrays (a 2D array). An adjacency list is a linked list of linked lists.
Transcribed Image Text:A DAG has no cycles, but directed edges. Graphs can be dense (have more edges) or sparse (have a fewer edges). Most graphs are dense. The adjacency matrix is an array of arrays (a 2D array). An adjacency list is a linked list of linked lists.
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