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In which scenario would you prefer using Dijkstra's algorithm over the Bellman-F
Practice Questions
Q1
In which scenario would you prefer using Dijkstra's algorithm over the Bellman-Ford algorithm?
When the graph has negative weights
When the graph is dense
When the graph has non-negative weights
When you need to find all pairs shortest paths
Questions & Step-by-Step Solutions
In which scenario would you prefer using Dijkstra's algorithm over the Bellman-Ford algorithm?
Steps
Concepts
Step 1: Understand what Dijkstra's algorithm does. It finds the shortest path from a starting point to all other points in a graph.
Step 2: Know that Dijkstra's algorithm works best when all the weights (distances) on the edges of the graph are non-negative (zero or positive).
Step 3: Learn about Bellman-Ford algorithm. It can handle graphs with negative weights and also finds the shortest paths.
Step 4: Compare the efficiency of both algorithms. Dijkstra's algorithm is generally faster than Bellman-Ford when there are no negative weights.
Step 5: Conclude that if you have a graph with only non-negative weights, you should choose Dijkstra's algorithm for better performance.
No concepts available.
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