What data structure is typically used to implement Dijkstra's algorithm efficien

Practice Questions

Q1
What data structure is typically used to implement Dijkstra's algorithm efficiently?
  1. Array
  2. Linked List
  3. Priority Queue
  4. Stack

Questions & Step-by-Step Solutions

What data structure is typically used to implement Dijkstra's algorithm efficiently?
  • Step 1: Understand that Dijkstra's algorithm is used to find the shortest path in a graph.
  • Step 2: Recognize that the algorithm needs to keep track of nodes and their distances from the starting point.
  • Step 3: Realize that we need a way to quickly find the node with the smallest distance to explore next.
  • Step 4: Learn that a priority queue is a special data structure that allows us to efficiently get the node with the smallest distance.
  • Step 5: Conclude that using a priority queue helps Dijkstra's algorithm run faster by minimizing the time it takes to find the next node.
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