This C++ code defines a class called "Graph" to represent an undirected graph and determine the number of provinces within it. The graph is implemented using an adjacency list data structure, where nodes are connected by edges. The code takes input for the number of nodes and edges, then adds these edges to the graph. It uses depth-first search (DFS) to traverse the graph and count the number of provinces, where a province is a connected component in the graph. The code outputs the adjacency list of the graph and the number of provinces it contains. This code provides a basic implementation for graph representation and province counting in a clear and organized manner.
This C++ code defines a class called "Graph" to represent an undirected graph and determine the number of provinces within it. The graph is implemented using an adjacency list data structure, where nodes are connected by edges. The code takes input for the number of nodes and edges, then adds these edges to the graph. It uses depth-first search (DFS) to traverse the graph and count the number of provinces, where a province is a connected component in the graph. The code outputs the adjacency list of the graph and the number of provinces it contains. This code provides a basic implementation for graph representation and province counting in a clear and organized manner.