In which scenario is Dijkstra's algorithm not suitable?

Practice Questions

Q1
In which scenario is Dijkstra's algorithm not suitable?
  1. Finding the shortest path in a road network
  2. Finding the shortest path in a graph with negative weights
  3. Finding the shortest path in a weighted graph
  4. Finding the shortest path in a tree

Questions & Step-by-Step Solutions

In which scenario is Dijkstra's algorithm not suitable?
  • Step 1: Understand what Dijkstra's algorithm does. It finds the shortest path from one point to another in a graph.
  • Step 2: Know that a graph is made up of nodes (points) and edges (connections between points).
  • Step 3: Recognize that Dijkstra's algorithm works well when all edge weights (the cost to travel between nodes) are zero or positive.
  • Step 4: Learn what negative weights are. They are edge weights that are less than zero, meaning traveling along that edge reduces the total cost.
  • Step 5: Realize that if a graph has negative weights, Dijkstra's algorithm can make mistakes and give the wrong shortest path.
  • Step 6: Conclude that Dijkstra's algorithm is not suitable for graphs with negative weights.
No concepts available.
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