Advent of code 2021

Here are my solutions for the 2021 edition of the Advent of Code. I will try to write a solution for every exercice in C++. When the problem is not too difficult, I will also try to golf it in Ruby. I will also solve some of the exercices in Rust and Prolog if I get the time.

There is a batch (so windows-only for now) script to automatically run a solution if it is implemented. To use it, you first need to put your input in a file called dayX.txt (X is the number of the day) in a folder called input. Then type

.\run.bat <lang> <day> <part>

In the command line at the root of the project.

lang is one of c++, cpp, ruby, prolog, and rust, day is a number between 1 and 25 and part is either 1 or 2.

Requirements

• To compile and run the c++ solutions, you need to have g++ installed and in the PATH.
• To compile and run the Rust solutions, you need to have Rust installed and rustc in the path.
• To run the prolog solutions, you need to have swipl (from SWI-Prolog) installed and in the PATH.
• To run the Ruby solutions, you need to have ruby installed and on the path.

Completed exercices :

Day	C++	Ruby	Prolog	Rust	Golf pt.1	Golf pt.2
1	✅✅	✅✅	❌✅	✅✅	39B	39B
2	✅✅	✅✅	❌❌	❌❌	64B	75B
3	✅✅	❌❌	❌❌	❌❌	N/A	N/A
4	✅✅	✅❌	❌❌	❌❌	237B	N/A
5	✅✅	✅❌	❌❌	❌❌	WIP	N/A
6	✅✅	✅✅	❌❌	❌❌	76B	77B
7	✅✅	✅✅	❌❌	❌❌	52B	76B
8	✅✅	✅✅	❌❌	❌❌	47B	212B
9	✅✅	❌❌	❌❌	❌❌	N/A	N/A
10	✅✅	❌❌	✅✅	❌❌	N/A	N/A
11	✅✅	❌❌	❌❌	❌❌	N/A	N/A
12	✅✅	❌❌	❌❌	❌❌	N/A	N/A