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Leetcode 323. Number of Connected Components in an Undirected Graph

Given n labeled nodes and a list of undirected edges, determine how many connected components the graph contains. This requires grouping nodes reachable from each other (e.g., via DFS/BFS or Union-Find) and counting the distinct groups.

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Amazon

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Early June, 2025

Amazon

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Leetcode 323. Number of Connected Components in an Undirected Graph

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