Years and days are packages, each day has two parts, each part is a function in the package. There will be tests based on examples provided on https://adventofcode.com/ I will try to backfill the previous years as I go.

The main.go file is a wrapper for the solutions, it takes 4 arguments:

• YEAR - year of the challenge
• DAY - day of the challenge
• PART - part of the challenge
• INPUT_FILE_PATH - path to the input file. This is optional, if not provided, will use the input.txt file in the same directory as challenge day.

go run . YEAR DAY PART INTPUT_FILE_PATH

go run . 2023 1 1 2023/1/input.txt

same as

go run . 2023 1 1

go test ./...