Which of the following data structures is used in the implementation of a breadth-first search algorithm? a) stack b) queue c) binary heap d) priority queue
Understand the Problem
The question is asking which data structure is employed in the breadth-first search (BFS) algorithm. This algorithm utilizes a specific structure to systematically explore nodes and is known to use a queue for its traversal mechanism.
Answer
Queue
The final answer is queue.
Answer for screen readers
The final answer is queue.
More Information
In a Breadth-First Search (BFS) algorithm, nodes are explored level by level. A queue is used to keep track of the nodes yet to be explored, ensuring the oldest unexplored nodes are processed first.
Tips
A common mistake is confusing BFS with DFS, which uses a stack instead of a queue.
Sources
- Breadth First Search or BFS for a Graph - GeeksforGeeks - geeksforgeeks.org
- Data Structure Questions and Answers – Breadth First Search - sanfoundry.com
- Difference between BFS and DFS - GeeksforGeeks - geeksforgeeks.org
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