aoc2022

Repository for the advent of Code 2022 in OCaml and Python.

Dependencies and usage

Programs expect 1 argument on the command-line, the problem number of the form nn_parti, where nn is the two digit problem day (between 01 and 25) and i must be 1 or 2 to indicates whether to solve for part 1 or part 2. The program expects the input data on stdin.

OCaml

Only the OCaml compiler and dune are required. Run with

$ cd ocaml/
$ dune exec --display=quiet -- bin/main.exe 11_part2 < ../inputs/input_11.txt

The expected solution for the input is printed on stdout.

Python

Only Python >= 3.8 is required. Run with

$ cd python
$ ./main.py 04_part2 < ../inputs/input_04.txt

The expected solution for the input is printed on stdout

Variants

Some solutions have an _animate variant when the solution is graphical. You can list all available solution variants with using list as a solution name.

Inputs

The input directory contains several kind of files.

• input_nn.txt is the real input generated for my account.
• output_nn_parti.txt is the expected output for this particular input (usually a single string, often number) for part i.
• input_nn_xxx.txt and output_nn_xxx_parti.txt are other possible input and output pairs given in the problem descriptions. They are often smaller and can be worked out by hand most of the time.

Rationale

The code only uses the standard libraries. As much as possible I tried to implement not too naïve solutions. Sometimes the first version of a problem was an instance of a more general problem (often given in part two), so the preliminary code that gave the solution for part one was removed.