Module day_3

This is my solution for Advent of Code - Day 3: Mull It Over

Most of today’s heavy lifting is done by the parser extract_instructions. Part one is solved by sum_muls which cherry-picks all the Mul instructions. sum_instructions extends that by respecting Do and Dont instructions.

Enums

• Instruction 🔒
  The possible instructions that can be extracted from the input string

Functions

• extract_instructions 🔒
  Uses a [Regex] to extract specific Instructions from the input string.
• parse_named_group 🔒
  Helper for parsing a specified Regex capturing group as a number
• run
  The entry point for running the solutions with the ‘real’ puzzle input.
• sum_instructions 🔒
  Solution to part 1. Sums the results of applying only Mul instructions that are not disabled by Dont instructions.
• sum_muls 🔒
  Solution to part 1. Sums the results of applying all Mul instructions