Solutions to https://adventofcode.com/2021
You're on a ship at sea when the alarm goes off! Apparently, one of the Elves tripped and accidentally sent the sleigh keys flying into the ocean!
Before you know it, you're inside a submarine. It has an experimental antenna to track the keys, but you need to boost its signal strength (a little meter indicates the antenna's signal strength by displaying 0-50 stars).
In order to save Christmas, you'll need to get all fifty stars by December 25th. Collect stars by solving puzzles.
- Day 01 - Mapping how deep is the ocean floor
- Day 02 - Discovering the submarine's planned route
- Day 03 - Strange noises? Interpret the diagnostic report: find 𝛾, ε, O₂, CO₂
- Day 04 - Playing bingo with the Giant Squid
- Day 05 - Avoiding opaque clouds lines produced by hydrothermal vents.
- Day 06 - Modeling how lanternfish population grows exponentially
- Day 07 - A giant whale wants to eat you! Align the swarm of crabs to blast a hole in the ocean floor
- Day 08 - Fixing the four-digit seven-segment display
- Day 09 - Inside this lava tubes caves, you should avoid the smoke released by small hydrothermal vents
- Day 10 - The navigation subsystem is broken! Find what is wrong with it
- Day 11 - Mesmerize at bioluminescent dumbo octopuses flashing synchronously
- Day 12 - Finding all paths in order to exit the caves labyrinth
- Day 13 - Folding a transparent paper to activate the submarine's thermal camera system
- Day 14 - Finding the optimal polymer formula to reinforce the submarine
- Day 15 - Exiting the cave without bumping into chitons
- Day 16 - Decoding elves BITS message after exiting the cave
- Day 17 - Aiming a probe into the trench in order to find the sleigh keys
- Day 18 - Helping one of the smaller snailfish with his math homework
- Day 20 - Interpret the image using the image enhancement algorithm
- Day 21 - Playing Dirac Dice with the submarine computer
- Day 22 - Rebooting the submarine's reactor, due to extreme ocean depths
- Day 23 - Organizing the stubborn amphipods
- Day 25 - Watching sea cucumbers moving on the seefloor, so you can safely land the submarine