Can you explain Dijkstra's algorithm with some examples?
Sure! Dijkstra's algorithm finds the shortest path between nodes in a graph. For example, in a road network, it can determine the quickest route from one city to another.
Can you give me a specific example using a graph?
Absolutely! Imagine a graph with nodes A, B, C, and D. If the distances are A-B: 1, A-C: 4, B-C: 2, and B-D: 5, Dijkstra's algorithm will find the shortest path from A to D as A -> B -> D.
What if there are negative weights in the graph?
Dijkstra's algorithm doesn't work with negative weights. For graphs with negative weights, the Bellman-Ford algorithm is a better choice.
Can you show me how to implement Dijkstra's algorithm in Python?
Sure! Here's a simple implementation in Python using a priority queue. Would you like to see the code?
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