advent-of-code/2024-python
Anders Englöf Ytterström 7c2b4c835a Solve 2024:16 pt2 "Reindeer Maze"
Part 1 was easily solved by Dijkstras (using heapq).
Tricky part was to find the way to serialize the
queue items for the heappush and heappop to behave
as required.

Part 2 was incredible hard to figure out, and I
could not do it by myself. From the subreddit, it
is hinted that a traditional set of visited nodes
to determine algorithm exit would not work.

After some laboration and readin some hints, I
managed to find a solution where the code keeps
tracks using a defaultdict.
2025-01-05 00:06:18 +01:00
..
output Solve 2024:16 pt2 "Reindeer Maze" 2025-01-05 00:06:18 +01:00
aoc.py Solve 2024:9 p1-2 "Disk Fragmenter" 2025-01-05 00:06:18 +01:00
README.md Prepare for AOC 2024 2025-01-05 00:06:18 +01:00

Advent of Code 2024

Solutions for #aoc2024 in Python 3 (3.12.7).

Programming setup:

  • Lenovo Thinkpad X260
  • Arch Linux with Hyprland
  • Zed editor (Ruff, Pyright)
  • Firefox
  • Alacritty

Help scripts

Display all solved puzzles:

python aoc.py

To bootstrap a new puzzle (creates input/<day_no>.txt and output/day_<day_no>.py):

python aoc.py <day_no> new

Manually copy the puzzle input from https://adventofcode.com and paste it in input/<day_no>.txt to start coding.

wl-paste > input/<day_no>.txt

Solve separate puzzle (replace XX with the puzzle number):

python -m output.day_XX

Solve separate puzzle using stdin (replace XX with the puzzle number):

wl-paste | python -m output.day_XX
cat tmpfile | python -m output.day_XX

Execute separate puzzle on file save (replace XX with the puzzle number):

ls output/*.py | entr -c -s 'wlpaste | python -m output.day_XX'
ls output/*.py | entr -c -s 'cat tmpfile | python -m output.day_XX'
ls output/*.py | entr -c -r python -m output.day_XX

(requires entr and wl-paste, Mac users can instead use pbpaste. If you prefer X at Linux, use xclip -selection clipboard -o).

To lint files:

ls output/*.py | entr -r -c flake8 output --ignore=E741,E501,E203