Module advent_of_code_2023::day_7

This is my solution for Advent of Code - Day 7: Camel Cards

The bulk of the work is done in parsing the input into Hands. This is done by parse_input, parse_hand. calculate_hand_type is used during parsing to pre-calculate the HandType once for use in later sorting. parse_cards_part_1, parse_cards_part_2 are used to control whether a J is a Joker or a Jack.

total_winnings sorts the hands using Hand::cmp, and enumerates the ranking to get the puzzle solutions.

Structs

• Hand 🔒
  A hand of cards, including the list of cards in drawn order, the scoring type, and amount bid

Enums

• Card 🔒
  A single card.
• HandType 🔒
  The scoring type of a Hand of five cards

Functions

• calculate_hand_type 🔒
  Determine the hand rank of a list of five cards.
• parse_cards_part_1 🔒
  Use part 1 parsing of J meaning Jack
• parse_cards_part_2 🔒
  Use part 2 parsing of J meaning Joker
• parse_hand 🔒
  Parse a single line in the format AKQJT 123
• parse_input 🔒
  Parse the puzzle input
• run
  The entry point for running the solutions with the ‘real’ puzzle input.
• total_winnings 🔒
  Reduce a list of cards to the puzzle solution. This is their place in the ranking when sorted weakest first multiplied by the amount bid.