Adjacency list

This undirected cyclic graph can be described by the three unordered lists {b, c}, {a, c}, {a, b}.

In graph theory and computer science, an adjacency list is a collection of unordered lists used to represent a finite graph. Each unordered list within an adjacency list describes the set of neighbors of a particular vertex in the graph. This is one of several commonly used representations of graphs for use in computer programs.


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