What are the differences between Dijkstra's and A* algorithms?
An example of an AI chatbot conversation about complexity analysis of Dijkstra's and A* algorithms.
What are the differences between Dijkstra's and A* algorithms?
Dijkstra's algorithm finds the shortest path from a source to all nodes, while A* uses heuristics to optimize pathfinding.
Can you explain how the heuristic in A* works?
Sure! The heuristic in A* estimates the cost from the current node to the goal, helping to prioritize paths that seem more promising.
What is the time complexity of both algorithms?
Dijkstra's algorithm has a time complexity of O(V^2) with a simple implementation, while A* can vary but is often O(E) with a good heuristic.
When should I use A* over Dijkstra's?
Use A* when you have a good heuristic that can guide the search efficiently, especially in large graphs or games.
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