Ada Advent of Code 2021

Ada solutions to Advent of Code 2021. I may not be able to publish solutions daily, but they will come sooner or later.

I'll try to use available Ada 202X constructs.

Ada202X features

Here are referenced days that use Ada202X features, based on the following list: https://blog.adacore.com/ada-202x-support-in-gnat

• assignment target name @: all of them.
• Indexes in array aggregate: day07
• 'Reduce: day01, day07

Solutions "philosophy"

More like guidelines I'll try to follow, but will break if it makes sense:

• code should be as much as possible self-contained (might abstract away input reading in some cases)
• use as much terminology from the puzzle wording as possible
• custom types, lots of them
• as little hard coding as possible
• renames over use
  • use type is good for making operators visibles
• names part_1 and part_2 should preferably be present in the code, as variables or methods

Build

You can build the project using the command:

gnat make -Paoc2021.gpr

Run

Executables are in the exec folder. They always take 1 argument: the path to the input puzzle.

If you want to run day 1, use the command:

path/to/advent_of_code_2021/exec/day01 /path/to/input.txt