In which scenario would you prefer using Dijkstra's algorithm over A* search alg
Practice Questions
Q1
In which scenario would you prefer using Dijkstra's algorithm over A* search algorithm?
When you need to find the shortest path in a grid
When the heuristic is not available
When the graph has negative weights
When you need to find all paths
Questions & Step-by-Step Solutions
In which scenario would you prefer using Dijkstra's algorithm over A* search algorithm?
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: Understand what A* search algorithm does. It also finds the shortest path but uses a heuristic to estimate the distance to the goal.
Step 3: Identify when you have a heuristic. If you have a good estimate of the distance to the goal, A* is usually better.
Step 4: Identify when you do not have a heuristic. If you don't have any information to estimate the distance to the goal, you cannot use A* effectively.
Step 5: Conclude that in scenarios without a heuristic, Dijkstra's algorithm is preferred because it will still find the shortest path without needing extra information.
