Advent of Code 2021

The Advent of Code is an Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like. People use them as a speed contest, interview prep, company training, university coursework, practice problems, or to challenge each other.

Table of Contents

• Day 1: Sonar Sweep 🌟 🌟
• Day 2: Dive! 🌟 🌟
• Day 3: Binary Diagnostic 1️⃣ 2️⃣
• Day 4: Giant Squid 1️⃣ 2️⃣
• Day 5: Hydrothermal Venture 1️⃣ 2️⃣
• Day 6: Lanternfish 1️⃣ 2️⃣
• Day 7: The Treachery of Whales 1️⃣ 2️⃣
• Day 8: Seven Segment Search 1️⃣ 2️⃣
• Day 9: Smoke Basin 1️⃣ 2️⃣
• Day 10: Syntax Scoring 1️⃣ 2️⃣
• Day 11: Dumbo Octopus 1️⃣ 2️⃣
• ...