Day 16: Reindeer Maze
Megathread guidelines
- Keep top level comments as only solutions, if you want to say something other than a solution put it in a new post. (replies to comments can be whatever)
- You can send code in code blocks by using three backticks, the code, and then three backticks or use something such as https://topaz.github.io/paste/ if you prefer sending it through a URL
FAQ
- What is this?: Here is a post with a large amount of details: https://programming.dev/post/6637268
- Where do I participate?: https://adventofcode.com/
- Is there a leaderboard for the community?: We have a programming.dev leaderboard with the info on how to join in this post: https://programming.dev/post/6631465
3 points
prev_nodes[neighbor].append(node)
I think you’re adding too many neighbours to the prev_nodes here potentially. At the time you explore the edge, you’re not yet sure if the path to the edge’s target via the current node will be the cheapest.
3 points
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