Awesome

C++ Solutions to Advent of Code 2023

This respository contains my solutions to the Advent of Code 2023 event (https://adventofcode.com/2023).

Disclaimer

My code is certainly not the optimal solution. Every solution works and this repository serves to showcase my approach to the problems. The code can certainly be refined, optimzied and improved in terms of readability. Having said that those are just my initial solutions and I did not find the time to refactor (yet). I might refactor the code when I find the time but I also might not - we shall see.

Completeness

I am still working on some of my solutions. I will solve them still but I do not have the time to look into it right now. I did not have time to do some entire days (e.g 12 and 17) yet either so I will do that when I find the time - I looked at the problems and they doesn't seem too hard, some thinking will probably be required though. I hope to be finished by 01.01.2024 but I can't guarantee it. Having said that there are plenty of other C++ solution repos here on GitHub if you really need a solution fast although some are quite cryptic at a first glance - see Bogdanp/awesome-advent-of-code.

File Structure

There a 25 directories named day01 to day25 which contain the code to solve the problems of that specific day. In those directories two cpp-files can be found: 1.cpp and 2.cpp corresponding to the first and second part of the days problem respectively. All source files have been compiled using

$ g++ -std=c++20 -Wall <x>.cpp

The root directory contains a day script which can be sourced to open the problem page and cd into the corresponding directory. For example running

$ . day 1

or

$ source day 1

opens https://adventofcode.com/2023/day/1 and changes the working directory to day01. Simply executing the file with ./day 1 will not change the directory so make sure to source it if you use the script.

Input and Output

Every solution reads the input from a file called input. The result is saved into output but can also be read out in stdout as the last space seperated token of the first line.