Leetcode323

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Number of Connected Components in an Undirected Graph Solution

1. Approach

• Utilize Breadth-First Search (BFS) to traverse the graph.
• Represent the graph using an adjacency list with a defaultdict.
• Use a queue (deque) to manage the BFS traversal order.
• Maintain a visited list to keep track of visited nodes.
• Increment the connected component count each time a new BFS traversal is initiated from an unvisited node.
• Time Complexity: O(n + e), where n is the number of nodes and e is the number of edges.
• Concepts: Graphs, BFS, Queue, Hashmaps, Adjacency List

Link to problem Leetcode Problem Number #323 STATUS : Accepted

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