bjorng
Advent of Code 2019 - Day 15
Note: This topic is to talk about Day 15 of the Advent of Code 2019.
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sasajuric
My original pure-functional design of Intcode definitely payed off today! Doing a breadth-first search (which I used to solve both parts) was straightforward. There is some duplication in the solution for each part, and I spend short time figuring out if I could make a more generic BFS abstraction, but in the end I didn’t feel it’s worth it. I might explore this in the future. Anyway, here’s my solution.
cblavier
I just had a look at everyone’s solution and I’m surprised to notice that (for once) my solution is among the shortest (30 lines for each part).
Nothing fancy in my code though, it was a pretty straightforward tree traversal
bjorng
I changed my
Intcodemodule back to be fully functional (not using processes or message passing).Here is my solution.
Last Post!
ferd
Took a while. Part 1 was straightforward using a kind of probabilistic search, but I needed to redo part 2 from scratch to use literal backtracking search algorithms to generate a proper map.
Then filling it was easy as a second phase.