Had to scrap my Dijkstra and implement bfs instead :/
Had to scrap my Dijkstra and implement bfs instead :/
4 评论
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The main thing I remember about Dijkstra's algorithm was that at uni when we coded it up in the lab my version had a bug where a certain node was always 0, so I just left the mouse cursor on top of that mode when I demoed it - got full marks 🤓
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Dijkstra's algorithm can fairly simply be modified to work for part 2. In the relaxation step you just need to also handle the case that the distances of two joining paths are equal.
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I did try that at first, but it didn't really work the way I wanted it to. That's probably also because our implementation from school was a bit odd.
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BFS is Dijkstra with a queue instead of a heap 🤷♂️