Upon reaching Island Island via gondola, you encounter an Elf struggling with a pile of scratchcards. Your task is to analyze these scratchcards, first to calculate their points and then to determine how many more scratchcards they yield.
Title: Scratchcard Analysis
Each scratchcard lists winning numbers and the numbers you have. Points are calculated based on matches with the winning numbers.
Task: Determine the total points value of all scratchcards.
Example:
Card 1: 41 48 83 86 17 | 83 86 6 31 17 9 48 53(8 points)Card 2: 13 32 20 16 61 | 61 30 68 82 17 32 24 19(2 points)Card 5: 87 83 26 28 32 | 88 30 70 12 93 22 82 36(0 points)
Solution:
To find the total points value:
cd Day4
cargo run --release part1This command will run the Rust program for Part One, providing the total points value of all scratchcards.
Title: Scratchcard Multiplication
Now, you must calculate how many scratchcards are won based on the number of matching numbers, including copies of scratchcards.
Task: Determine the total number of scratchcards you end up with, including originals and copies.
Example:
Card 1wins four cards (cards 2, 3, 4, 5)Card 2wins two cards (cards 3, 4)- Original and copied cards can win more cards
Solution:
To calculate the total number of scratchcards:
cd Day4
cargo run --release part2Running this command for Part Two will display the total number of scratchcards, including all originals and copies.
The puzzle input contains the list of scratchcards. Access it here: Day 4 Input.
Solving Day 4's puzzles required logical thinking and a thorough understanding of pattern matching and recursion, enhancing my skills in Rust programming.
Return to the main README for an overview of all days.
This README.md provides a detailed overview of Day 4's challenges, including the tasks, examples, and solutions for each part. It also includes instructions on how to run the code for each part and a link to the input file. Remember to update the link if your file structure or naming convention differs.