2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023
| Day | Problem Page | Feel | Solution Page | 😉 |
|---|---|---|---|---|
| 1 | Report Repair | 🌟 | year20/day01 | 💲 2️⃣ 0️⃣ 2️⃣ 0️⃣ |
| 2 | Password Philosophy | 🌟 | year20/day02 | 🔒 |
| 3 | Toboggan Trajectory | 🌟 | year20/day03 | 🌲 🏂 ➡️ ⬇️ |
| 4 | Passport Processing | 😫 | year20/day04 | 🛂 |
| 5 | Binary Boarding | 🤯 | year20/day05 | |
| 6 | Custom Customs | 🌟 | year20/day06 | 📝 |
| 7 | Handy Haversacks | 😣 | year20/day06 | 🧳 🧳 |
| 8 | Handheld Halting | 🌟 | year20/day08 | 💻 |
| 9 | Encoding Error | 🌟 | year20/day09 |