Advent of Code 2021

From the Advent of Code website:

Advent of Code is an Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like. People use them as a speed contest,interview prep, company training, university coursework, practice problems, or to challenge each other.

What follows are some visualisation I made for a few of the puzzles. At the time of writing the puzzles are still being unlocked day by day, I will try to do a little write-up later. 

Here is a visualisation for day 9:

Here is a visualisation for day 11:

Solving Day 13 puzzle while recording how I go.

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