What is the purpose of the 'visited' array in Dijkstra's algorithm?

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Question: What is the purpose of the \'visited\' array in Dijkstra\'s algorithm?

Options:

Correct Answer: To track the vertices that have been processed

Solution:

The \'visited\' array in Dijkstra\'s algorithm is used to track which vertices have been processed to avoid reprocessing them.

What is the purpose of the 'visited' array in Dijkstra's algorithm?

What is the purpose of the 'visited' array in Dijkstra's algorithm?

Step 1: Understand that Dijkstra's algorithm is used to find the shortest path in a graph.
Step 2: Know that a graph consists of vertices (points) and edges (connections between points).
Step 3: Realize that during the algorithm, we need to process each vertex to find the shortest path.
Step 4: The 'visited' array is created to keep track of which vertices have already been processed.
Step 5: When a vertex is processed, it is marked in the 'visited' array.
Step 6: By using the 'visited' array, we can avoid processing the same vertex multiple times.
Step 7: This helps the algorithm run more efficiently and ensures we only consider each vertex once.

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