AOC 2021

This is my code for the Advent of Code 2021 challenge.

I'm not really making any effort for this code to be efficient. Just trying to get the answers right.

I'm testing this with gcc 8.5 and cmake 3.20.

• It'll probably work with a lot of other compilers.
• I set the experimental C++20 flag, but it's unlikely I'll use any of those features.

To build:

mkdir build
cd build
cmake ../src
make

This generates the aoc-2021 executable in the build directory. Run it from there, as it will look to ../data for input files. Command line help is available from the executable.

For an optimized build:

mkdir bfast
cd bfast
cmake -DCMAKE_BUILD_TYPE=Release ../src
make

Command line help is available from the executable.