Advent of Code 2021
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--- AOC Day 21: Dirac Dice ---

There's not much to do as you slowly descend to the bottom of the ocean. The submarine computer challenges you to a nice game of Dirac Dice. This game consists of a single die, two pawns, and a game board with a circular track containing ten spaces m...

Laura by Community Manager
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--- AOC Day 20: Trench Map ---

With the scanners fully deployed, you turn their attention to mapping the floor of the ocean trench. When you get back the image from the scanners, it seems to just be random noise. Perhaps you can combine an image enhancement algorithm and the input...

Laura by Community Manager
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AOC Week 3 Leaderboard

Congratulations to our puzzlers for completing week 3 of AOC! Time flies when you're having fun. Here are the Top 50 on our KX Community Leaderboard: 2079 ***************** @WillDaSilva 2059 ***************** adventofk 2011 ***************** @adotsch...

Laura by Community Manager
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--- AOC Day 17: Trick Shot ---

You finally decode the Elves' message. HI, the message says. You continue searching for the sleigh keys. Ahead of you is what appears to be a large ocean trench. Could the keys have fallen into it? You'd better send a probe to investigate. The probe ...

Laura by Community Manager
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AOC Day 5: Hydrothermal Venture

You come across a field of hydrothermal vents on the ocean floor! These vents constantly produce large, opaque clouds, so it would be best to avoid them if possible. [more…] Spoiler (Highlight to read)This post contains solutions!This post contains s...

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SJT by Contributor II
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--- AOC Day 16: Packet Decoder ---

As you leave the cave and reach open waters, you receive a transmission from the Elves back on the ship. The transmission was sent using the Buoyancy Interchange Transmission System (BITS), a method of packing numeric expressions into a binary sequen...

Laura by Community Manager
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AOC Day 4: Giant Squid

Day 4: Giant Squid Spoiler (Highlight to read)Spoilers ahead: this post contains solutionsSpoilers ahead: this post contains solutions The bingo boards are nicely readable in the text file, but we shall find them more tractable as vectors. q)q:read0`...

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SJT by Contributor II
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--- AOC Day 15: Chiton ---

You've almost reached the exit of the cave, but the walls are getting closer together. Your submarine can barely still fit, though; the main problem is that the walls of the cave are covered in chitons, and it would be best not to bump any of them. T...

Laura by Community Manager
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--- AOC Day 14: Extended Polymerization ---

The incredible pressures at this depth are starting to put a strain on your submarine. The submarine has polymerization equipment that would produce suitable materials to reinforce the submarine, and the nearby volcanically-active caves should even h...

Laura by Community Manager
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--- AOC Day 13: Transparent Origami ---

You reach another volcanically active part of the cave. It would be nice if you could do some kind of thermal imaging so you could tell ahead of time which caves are too hot to safely enter. Fortunately, the submarine seems to be equipped with a ther...

Laura by Community Manager
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AOC Week 2 Leaderboard

Congratulations to our puzzlers for completing week 2 of AOC! Here are the Top 50 on our KX Community Leaderboard: 1200 ********** adventofk 1194 ********** @WillDaSilva 1157 ********** @adotsch 1119 ********** sean185 1115 ********** @ashahbaz 1105 ...

Laura by Community Manager
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--- AOC Day 10: Syntax Scoring ---

You ask the submarine to determine the best route out of the deep-sea cave, but it only replies: Syntax error in navigation subsystem on line: all of them All of them?! The damage is worse than you thought. You bring up a copy of the navigation subsy...

Laura by Community Manager
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--- AOC Day 9: Smoke Basin ---

These caves seem to be lava tubes. Parts are even still volcanically active; small hydrothermal vents release smoke into the caves that slowly settles like rain. If you can model how the smoke flows through the caves, you might be able to avoid it an...

Laura by Community Manager
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--- AOC Day 8: Seven Segment Search ---

You barely reach the safety of the cave when the whale smashes into the cave mouth, collapsing it. Sensors indicate another exit to this cave at a much greater depth, so you have no choice but to press on. As your submarine slowly makes its way throu...

Laura by Community Manager
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--- AOC Day 7: The Treachery of Whales ---

A giant whale has decided your submarine is its next meal, and it's much faster than you are. There's nowhere to run! Suddenly, a swarm of crabs (each in its own tiny submarine - it's too deep for them otherwise) zooms in to rescue you! They seem to ...

Laura by Community Manager
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--- AOC Day 6: Lanternfish ---

The sea floor is getting steeper. Maybe the sleigh keys got carried this way? A massive school of glowing lanternfish swims past. They must spawn quickly to reach such large numbers - maybe exponentially quickly? You should model their growth rate to...

Laura by Community Manager
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AOC Week 1 Leaderboard

Well done everyone! The first week of AOC is almost over already  Let's take a look at our KX Community leaderboard so far: 346 *** adventofk 334 *** @WillDaSilva 330 *** sean185 (AoC++) [X] 329 *** @adotsch 316 *** Alexander Livingston 315 *** @Jas...

Laura by Community Manager
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--- AOC Day 3: Binary Diagnostic ---

The submarine has been making some odd creaking noises, so you ask it to produce a diagnostic report just in case. The diagnostic report (your puzzle input) consists of a list of binary numbers which, when decoded properly, can tell you many useful t...

Laura by Community Manager
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AOC Code golf!

Hi all!Just as a bit of fun, I was wondering how short we can manage to get the solutions to the AOC challenges. Try them first before looking what I've got so far: Day 1: Spoiler (Highlight to read)Challenge 1:-1+/0>':d​ Challenge 2: -3+/0>':3 msum ...

lmcdermid by New Contributor
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--- AOC Day 2: Dive! ---

Now, you need to figure out how to pilot this thing. It seems like the submarine can take a series of commands like forward 1, down 2, or up 3: forward X increases the horizontal position by X units. down X increases the depth by X units. up X decrea...

Laura by Community Manager
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--- AOC Day 1: Sonar Sweep ---

You're minding your own business on a ship at sea when the overboard alarm goes off! You rush to see if you can help. Apparently, one of the Elves tripped and accidentally sent the sleigh keys flying into the ocean! Before you know it, you're inside ...

Laura by Community Manager
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Advent of Code 2021

It's that time of year again We're getting into the festive spirit using the brilliant Eric Wastl's Advent of Code. The game is pretty simple: Sign up at https://adventofcode.com/ Join the private KX leaderboard using our code 1526329-bb0915a5 Submi...

Laura by Community Manager
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