README.md

Advent of Code 2021

This folder contains solutions to each of the problems in Advent of Code 2021 in C++.

Note

• The sample puzzles for some days (eg 12, 16) multiple sample inputs. Edit the file before using it.
• For simplicity the sample input for day 18 only contains the final sample input.
• The sample input for day 24 is not a sample puzzle but a way to check some logic that might be required for the puzzle

Puzzle	C++ Solutions	Input	Sample Input	Puzzle page with solutions
Day 1: Sonar Sweep	Part 1 Part 2	Link	Link	Link
Day 2: Dive!	Part 1 Part 2	Link	Link	Link
Day 3: Binary Diagnostic	Part 1 Part 2	Link	Link	Link
Day 4: Giant Squid	Part 1 Part 2	Link	Link	Link
Day 5: Hydrothermal Venture	Part 1 Part 2	Link	Link	Link
Day 6: Lanternfish	Part 1 Part 2	Link	Link	Link
Day 7: The Treachery of Whales	Part 1 Part 2	Link	Link	Link
Day 8: Seven Segment Search	Part 1 Part 2	Link	Link	Link
Day 9: Smoke Basin	Part 1 Part 2	Link	Link	Link
Day 10: Syntax Scoring	Part 1 Part 2	Link	Link	Link
Day 11: Dumbo Octopus	Part 1 Part 2	Link	Link	Link
Day 12: Passage Pathing	Part 1 Part 2	Link	Link	Link
Day 13: Transparent Origami	Part 1 Part 2	Link	Link	Link
Day 14: Extended Polymerization	Part 1 Part 2	Link	Link	Link
Day 15: Chiton	Part 1 Part 2	Link	Link	Link
Day 16: Packet Decoder	Part 1 Part 2	Link	Link	Link
Day 17: Trick Shot	Part 1 Part 2	Link	Link	Link
Day 18: Snailfish	Part 1 Part 2	Link	Link	Link
Day 19: Beacon Scanner	Part 1 Part 2	Link	Link	Link
Day 20: Trench Map	Part 1 Part 2	Link	Link	Link
Day 21: Dirac Dice	Part 1 Part 2	Link	Link	Link
Day 22: Reactor Reboot	Part 1 Part 2	Link	Link	Link
Day 23: Amphipod	Part 1 Part 2	Link	Link	Link
Day 24: Arithmetic Logic Unit	Part 1 Part 2	Link	Link	Link
Day 25: Sea Cucumber	Part 1	Link	Link	Link