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Questions and Answers
What is a graph in the context of data structures?
What is a graph in the context of data structures?
In a graph, what does the set of vertices represent?
In a graph, what does the set of vertices represent?
What do undirected graphs imply about the edges?
What do undirected graphs imply about the edges?
What is the in-degree of a vertex in a directed graph?
What is the in-degree of a vertex in a directed graph?
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What do self-edges represent in a graph?
What do self-edges represent in a graph?
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Study Notes
Graphs in Data Structures
- A graph is a non-linear data structure composed of vertices (also called nodes or points) connected by edges.
Vertices in a Graph
- The set of vertices in a graph represents a set of unique objects or entities, such as people, cities, or objects.
Undirected Graphs
- In an undirected graph, the edges imply a bi-directional relationship between the vertices, meaning that the edges do not have direction and can be traversed in both directions.
Directed Graphs
- In a directed graph, the in-degree of a vertex is the number of edges incoming to that vertex.
Self-Edges in a Graph
- Self-edges in a graph represent a vertex that is connected to itself, essentially forming a loop.
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Description
Learn the fundamentals of graph data structures with this quiz. Explore the formalism for representing relationships among items, the concept of vertices and edges, and the distinctions between directed and undirected graphs.
