• Homepage: Advent of Code 2022
• Repo: aoc2022 in Kotlin

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Liner Notes

Day 1 Calorie Counting

find the elves carrying the most calories.

Day 2 Rock Paper Scissors

play Rock Paper Scissors based on a provided strategy.

Day 3 Rucksack Reorganization

help the elves packing their rucksacks.

Day 4 Camp Cleanup

help the elves discover overlapping assignments.

Day 5 Supply Stacks

help the elves with logistics.

Day 6 Tuning Trouble

help the elves with their messages.

Day 7 No Space Left On The Device

help the elves with s system update. This if the first puzzle which becomes much easier once you’ve figured out what you actually don’t have to do. (i.e. a tree lends itself as a feasible data structure, but it turns out to be hard to parse, ‘flattening’ the process and just storing sizes to all affected paths is much easier)

Day 8 Treetop Tree House

help the elves with finding a nice spot for their tree house. The first grid puzzle of the year, it was a little tricky to integrate the ‘perspective’ of each location. (probably it would have been easier to just use loops and breaks)

Day 9 Rope Bridge

help the elves crossing a river by simulating a rope bridge.

Day 10 Cathode-Ray Tube

emulate a very cool CRT.

Day 11 Monkey in the Middle

deal with a group of monkeys who are playing with your items. The first puzzle this year, where it’s essential to find out what you don’t need to worry about.

Day 12 Hill Climbing Algorithm

help the elves finding the shortest path. My solution is not very idiomatic, but I like it as a poor man’s breath first search which delegates some logic towards the data class.

Day 13 Distress Signal

calibrate your device to communicate with the elves.

Day 14 Regolith Reservoir

simulate a sandy cave.

Day 15 Beacon Exclusion Zone

locate beacons in a large grid.

Day 16 Proboscidea Volcanium

navigate a cave with valves.

Day 17 Pyroclastic Flow

calculate the height of a narrow chamber with falling rocks.

Day 18 Boiling Boulders

calculate the surface area of obsidian.

Day 19 Not Enough Minerals

simulate a series of state machines.

Day 20 Grove Positioning System

Find the location of the grove.

Day 21 Monkey Math

Play with the monkeys and figure out their math. Obviously the use an interesting system.

Day 22 Monkey Map

Find the password for a strange input device.

Day 23 Unstable Diffusion

Help the elves picking star fruit.

Day 24 Blizzard Basin

Navigate a basin full of blizzards.

Day 25 Full of Hot Air

Help the elves fueling up their balloon. Obviously they use an interesting numeric system.