Explain the basic concept of Breadth-First Search (BFS).
- Traverses a graph by exploring nodes in a random order
- Traverses a graph in reverse order
- Traverses a graph level by level, exploring neighbor nodes before moving to the next level
- Traverses a graph using recursion
BFS explores a graph level by level, starting from the source node. It visits neighbor nodes before moving to the next level, ensuring all nodes at the current level are visited before proceeding.
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