# Which data structure is used in Boost graph Library?

## Which data structure is used in Boost graph Library?

Like the STL, the BGL uses iterators to define the interface for data-structure traversal. There are three distinct graph traversal patterns: traversal of all vertices in the graph, through all of the edges, and along the adjacency structure of the graph (from a vertex to each of its neighbors).

Advertisements. A graph is a pictorial representation of a set of objects where some pairs of objects are connected by links. The interconnected objects are represented by points termed as vertices, and the links that connect the vertices are called edges.

### How do you define a graph in C++?

A graph is a non-linear data structure. A graph can be defined as a collection of Nodes which are also called “vertices” and “edges” that connect two or more vertices. A graph can also be seen as a cyclic tree where vertices do not have a parent-child relationship but maintain a complex relationship among them.

What is minimum spanning tree algorithm?

A Minimum Spanning Tree (MST) is a subset of edges of a connected weighted undirected graph that connects all the vertices together with the minimum possible total edge weight. To derive an MST, Prim’s algorithm or Kruskal’s algorithm can be used.

#### What is graph and tree?

A graph is a set of vertices/nodes and edges. A tree is a set of nodes and edges. 3. In the graph, there is no unique node which is known as root. In a tree, there is a unique node which is known as root.

What is BFS and DFS?

BFS stands for Breadth First Search. DFS stands for Depth First Search. 2. BFS(Breadth First Search) uses Queue data structure for finding the shortest path. DFS(Depth First Search) uses Stack data structure.

## How do you represent a graph?

Representing graphs

1. It is common to identify vertices not by name (such as “Audrey,” “Boston,” or “sweater”) but instead by a number.
2. One simple way to represent a graph is just a list, or array, of ∣ E ∣ |E| ∣E∣vertical bar, E, vertical bar edges, which we call an edge list.

What is minimum spanning tree with example?

A minimum spanning tree is a special kind of tree that minimizes the lengths (or “weights”) of the edges of the tree. An example is a cable company wanting to lay line to multiple neighborhoods; by minimizing the amount of cable laid, the cable company will save money. A tree has one path joins any two vertices.

### What is spanning tree in graph?

A spanning tree is a sub-graph of an undirected connected graph, which includes all the vertices of the graph with a minimum possible number of edges. If a vertex is missed, then it is not a spanning tree. The edges may or may not have weights assigned to them.

Which is better tree or graph?

A tree follows some rule that determines the relationship between the nodes, whereas graph does not follow any rule that defines the relationship among the nodes. A graph contains a set of edges and nodes, and edges can connect the nodes in any possible way.