This repository holds my solutions and helper code for Advent Of Code 2019. These are by no means the "best" or "fastest" solutions out there. These are just my attempt at the challenge. I may add proper benchmarking at a later date if I feel like it.
This program runs a specific day based on a few factors inside the Main class.
If it is the month of December in EST time, whatever current day it is in EST time will be selected to run.
If this program is not run during the month of December, it will run ALL days by default.
An output from a day looks like the following:
Day 1:
Part 1: 123
Part 2: 456
Completed in 0.529s
Note that "Completed in X.XXXs" is not a real or accurate benchmark but my own hacky way to measure how long a day takes to run, approximately.
If you would like to run a specific day outside the month of the December, use run(int) in the Main class.
This program can optionally read input data for a specified day directly from the Advent Of Code servers. To enable this feature, an environment variable named "AOC_SESSION" must be set. It should hold your session cookie for the Advent Of Code website, which can be found with browser inspection. If input data is successfully retrieved from the servers, this data is cached in a text file relative to your run directory.
Fetching data from the Advent Of Code servers is only used if a file with the input data for a specified day cannot be found.
See the documentation on DataReader#read for more detail.