Consider a graph with num nodes, labeled from 0 to num - 1. Given num and a list of edges where each edges[i] = [a, b] represents an undirected connection between nodes a and b, determine the number of connected components in the graph.
In the context of a graph, a component of an undirected graph is a connected subgraph that is not part of any larger connected subgraph.
num: number: An integer, the number of nodes in the graphedges: Array<[number, number]>: A 2D array where edges[i] = [a, b] represents an undirected edge between nodes a and bInput: num = 6, edges = [[0,1],[4,5],[2,4],[1,3],[0,2]]Output: 1Explanation: All nodes are connected.
Input: num = 3, edges = [[0,1],[1,2]]Output: 1Explanation: All nodes are connected.
Input: num = 4, edges = [[0,1],[2,3]]Output: 2Explanation: There are two connected components: {0, 1} and {2, 3}.
num <= 1000edges.length <= 2000edges[i].length == 2a < b < numa != bConsider a graph with num nodes, labeled from 0 to num - 1. Given num and a list of edges where each edges[i] = [a, b] represents an undirected connection between nodes a and b, determine the number of connected components in the graph.
In the context of a graph, a component of an undirected graph is a connected subgraph that is not part of any larger connected subgraph.
num: number: An integer, the number of nodes in the graphedges: Array<[number, number]>: A 2D array where edges[i] = [a, b] represents an undirected edge between nodes a and bInput: num = 6, edges = [[0,1],[4,5],[2,4],[1,3],[0,2]]Output: 1Explanation: All nodes are connected.
Input: num = 3, edges = [[0,1],[1,2]]Output: 1Explanation: All nodes are connected.
Input: num = 4, edges = [[0,1],[2,3]]Output: 2Explanation: There are two connected components: {0, 1} and {2, 3}.
num <= 1000edges.length <= 2000edges[i].length == 2a < b < numa != bconsole.log() statements will appear here.