Graphs

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What is a graph

Graph-1.jpg

A graph is an abstract data structure. It can be used to solve routine problems.

Vertices connected by an edge (see picture) are called Neighbours.

The degree of a vertex is how many things are connected to it, in the picture, there would be 2.

Terms

weighted graph

vertex/node

edge/arc

undirected graph

directed graph

Adjacency Matrix

Adjacency List

Comparison of List VS Matrix