Advent of code 2021 Event site: https://adventofcode.com/2021 Solutions 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