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Number of Connected Components in an Undirected Graph

Explore how to determine the number of connected components in a graph with n nodes and edges. Understand problem constraints, implement solutions using Union Find, and optimize for time and space. This lesson helps you apply graph concepts to tackle common interview challenges.

Statement

For a given integer, n, and an array, edges, return the number of connected components in a graph containing n nodes.

Note: The array edges[i] = [x, y] indicates that there’s an edge between x and y in the graph.

Constraints:

  • 11 \leq n 2000 \leq 2000 ...