Graph :

A graph is a collection of two sets V and E where V is a finite non-empty set of vertices and E is a finite non-empty set of edges.

• Vertices are nothing but the nodes in the graph.

• Two adjacent vertices are joined by edges.

• Any graph is denoted as G = {V, E}.

For Example:

G = {{V1, V2, V3, V4, V5, V6}, {E1, E2, E3, E4, E5, E6, E7}}

A graph is a collection of vertices (also known as nodes) and edges that connect these vertices. Each edge represents a relationship or connection between two vertices.

Graph vs Tree