Advent of Code in Rust 🦀 2021 (Calendar) (Solutions) : 50⭐ Puzzle Stars Languages 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 ⭐⭐ Day 8: Seven Segment Search ⭐⭐ Day 9: Smoke Basin ⭐⭐ Day 10: Syntax Scoring ⭐⭐ Day 11: Dumbo Octopus ⭐⭐ Day 12: Passage Pathing ⭐⭐ Day 13: Transparent Origami ⭐⭐ Day 14: Extended Polymerization ⭐⭐ Day 15: Chiton ⭐⭐ Day 16: Packet Decoder ⭐⭐ Day 17: Trick Shot ⭐⭐ Day 18: Snailfish ⭐⭐ Day 19: Beacon Scanner ⭐⭐ Day 20: Trench Map ⭐⭐ Day 21: Dirac Dice ⭐⭐ Day 22: Reactor Reboot ⭐⭐ Day 23: Amphipod ⭐⭐ Day 24: Arithmetic Logic Unit ⭐⭐ Day 25: Sea Cucumber ⭐⭐