🎄 🦀 Advent of Code 2021 🦀 🎄 https://adventofcode.com/2021 Learning Rust this year. Day 1: Sonar Sweep Day 2: Dive! Day 3: Binary Diagnostic Day 4: Giant Squid Day 5: Hydrothermal Venture Day 6: Lanternfish Day 7: The Treachery of Whales