WARNING: THIS REPOSITORY SPOILS SOLUTIONS FOR PROBLEMS. DO NOT VIEW THE CODE IF YOU HAVE NOT SOLVED IT YOURSELF.

With that out of the way..

Advent of Code 2021

This is my crack at the Advent of Code 2021.

Just some general solutions and whatnot.

For those who want to see the results in action, I will add instructions for the usage of each solution.

Command-line usage of each solution

Day 1: Sonar Sweep

All input for both of them is read from STDIN.

For example:

# For a file as the input (in this case the file is "./day1/sample.txt")
cat ./day1/sample.txt | ./build/day1-puzzle1
cat ./day1/sample.txt | ./build/day1-puzzle2

Note that the solution for the second puzzle (day1-puzzle2) can be configured to use N-length windows. This is done by modifying the #define WIDTH 3 line in puzzle2.cpp. Defining it as 1 will yield the same output as the solution for puzzle 1 (day1-puzzle1).

Day 2: Dive!

For this one there is only one executable. Use the day2 programme.

The programme reads the instructions and executes them accordingly. To enable the aim found in the second puzzle, pass either the --enable-aim or -a argument.

Example usage:

# For a file as the input (in this case the file is "./day2/sample.txt")
cat ./day2/sample.txt | ./build/day2
# The usage with aim mode is the same, except for an extra `--enable-aim` argument
cat ./day2/sample.txt | ./build/day2 --enable-aim

Day 3: Binary Diagnostic

Use the day3-puzzle1 programme for the first puzzle, and day3-puzzle2 for the second.

The input method is the same as the last two.

Example usage:

cat ./day3/sample.txt | ./build/day3-puzzle1
cat ./day3/sample.txt | ./build/day3-puzzle2

Licence

All code in this repository is licensed under the MIT licence. Read the full licence text in the LICENCE file.