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    1. Day 7: Handy Haversacks

      Today's problem description: https://adventofcode.com/2020/day/7 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2020/day/7


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      12 votes
    2. Day 9: Encoding Error

      Today's problem description: https://adventofcode.com/2020/day/9 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2020/day/9


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      11 votes
    3. Day 8: Handheld Halting

      Today's problem description: https://adventofcode.com/2020/day/8 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2020/day/8


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      12 votes
    4. Day 2: Password Philosophy

      Today's problem description: https://adventofcode.com/2020/day/2 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2020/day/2


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      15 votes
    5. Day 1: Report Repair

      Today's problem description: https://adventofcode.com/2020/day/1 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2020/day/1


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      13 votes
    6. Day 5: Binary Boarding

      Today's problem description: https://adventofcode.com/2020/day/5 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2020/day/5


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      13 votes
    7. Day 6: Custom Customs

      Today's problem description: https://adventofcode.com/2020/day/6 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2020/day/6


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      10 votes
    8. IRC, anyone?

      I've created a room on Freenode called #tildes-aoc. It could be fun to jump in and hang out while we work on these problems.

      9 votes
    9. Day 4: Passport Processing

      Today's problem description: https://adventofcode.com/2020/day/4 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2020/day/4


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      13 votes
    10. Day 3: Toboggan Trajectory

      Today's problem description: https://adventofcode.com/2020/day/3 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2020/day/3


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      12 votes
    11. I've created a temporary sub-group for Advent of Code 2020, subscribe if you're interested!

      As we did last year, I've set up a temporary sub-group that we can use for this year's Advent of Code at ~comp.advent_of_code Some discussion and solutions were starting in this thread, but it...

      As we did last year, I've set up a temporary sub-group that we can use for this year's Advent of Code at ~comp.advent_of_code

      Some discussion and solutions were starting in this thread, but it will be easier to organize inside a devoted sub-group, and also makes it simpler for people to both find and avoid the relevant topics.

      If you posted solutions in that topic, please move them into the threads for Day 1 and Day 2.

      I automatically subscribed everyone that commented in or voted on that original topic, as well as everyone that posted a comment in any of last year's topics, but nobody else. So if you're interested in participating in Advent of Code or discussing it, please subscribe to the sub-group. Posts from the sub-group won't be shown to logged-out users by default either, so any logged-out users that want to observe will need to visit the sub-group directly (or you're welcome to email me and request an invite so you can register and subscribe).

      I've also set up scheduled posts to happen automatically as each day's puzzle unlocks.

      25 votes
    12. Day 25: Cryostasis

      Today's problem description: https://adventofcode.com/2019/day/25 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/25


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      5 votes
    13. Day 24: Planet of Discord

      Today's problem description: https://adventofcode.com/2019/day/24 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/24


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      4 votes
    14. Day 23: Category Six

      Today's problem description: https://adventofcode.com/2019/day/23 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/23


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      5 votes
    15. Day 10: Monitoring Station

      Today's problem description: https://adventofcode.com/2019/day/10 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/10


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      8 votes
    16. Day 15: Oxygen System

      Today's problem description: https://adventofcode.com/2019/day/15 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/15


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      6 votes
    17. Day 22: Slam Shuffle

      Today's problem description: https://adventofcode.com/2019/day/22 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/22


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      6 votes
    18. Day 14: Space Stoichiometry

      Today's problem description: https://adventofcode.com/2019/day/14 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/14


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      8 votes
    19. Day 21: Springdroid Adventure

      Today's problem description: https://adventofcode.com/2019/day/21 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/21


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      5 votes
    20. Day 20: Donut Maze

      Today's problem description: https://adventofcode.com/2019/day/20 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/20


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      5 votes
    21. Day 7: Amplification Circuit

      Today's problem description: https://adventofcode.com/2019/day/7 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/7


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      10 votes
    22. Day 18: Many-Worlds Interpretation

      Today's problem description: https://adventofcode.com/2019/day/18 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/18


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      8 votes
    23. Day 19: Tractor Beam

      Today's problem description: https://adventofcode.com/2019/day/19 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/19


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      6 votes
    24. Day 6: Universal Orbit Map

      Today's problem description: https://adventofcode.com/2019/day/6 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/6


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      11 votes
    25. Day 17: Set and Forget

      Today's problem description: https://adventofcode.com/2019/day/17 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/17


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      7 votes
    26. Day 16: Flawed Frequency Transmission

      Today's problem description: https://adventofcode.com/2019/day/16 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/16


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      6 votes
    27. Day 13: Care Package

      Today's problem description: https://adventofcode.com/2019/day/13 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/13


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      8 votes
    28. Day 12: The N-Body Problem

      Today's problem description: https://adventofcode.com/2019/day/12 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/12


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      9 votes
    29. Day 11: Space Police

      Today's problem description: https://adventofcode.com/2019/day/11 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/11


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      7 votes
    30. Day 9: Sensor Boost

      Today's problem description: https://adventofcode.com/2019/day/9 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/9


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      9 votes
    31. Day 5: Sunny with a Chance of Asteroids

      Today's problem description: https://adventofcode.com/2019/day/5 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/5


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      7 votes
    32. Day 8: Space Image Format

      Today's problem description: https://adventofcode.com/2019/day/8 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/8


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      8 votes
    33. Day 3: Crossed Wires

      Today's problem description: https://adventofcode.com/2019/day/3 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/3


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      13 votes
    34. Day 2: 1202 Program Alarm

      Today's problem description: https://adventofcode.com/2019/day/2 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/2


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      13 votes
    35. Day 4: Secure Container

      Today's problem description: https://adventofcode.com/2019/day/4 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/4


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      12 votes
    36. Day 1: The Tyranny of the Rocket Equation

      Today's problem description: https://adventofcode.com/2019/day/1 Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c. Please post your...

      Today's problem description: https://adventofcode.com/2019/day/1


      Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

      Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

      <details>
      <summary>Part 1</summary>
      
      ```python
      Your code here.
      ```
      
      </details>
      
      13 votes
    37. I've created a temporary sub-group for this year's Advent of Code, subscribe if you're interested!

      In this thread, people have been starting to post and discuss their solutions to this year's Advent of Code problems. To help make this easier to organize and discuss on Tildes, I've decided to...

      In this thread, people have been starting to post and discuss their solutions to this year's Advent of Code problems.

      To help make this easier to organize and discuss on Tildes, I've decided to create a sub-group devoted to it: ~comp.advent_of_code. We can keep this sub-group around for a couple of months or so, and this way we can split into separate topics for each day's problems, people getting started later can still get involved easily, and it will also make it simple for others that aren't interested to avoid the posts (just don't subscribe).

      I've automatically subscribed everyone that interacted with that original topic (by commenting in it, or voting on the topic itself or any of the comments), but nobody else. So if you're interested in participating in Advent of Code or discussing it, please subscribe to the sub-group. Posts from the sub-group won't be shown to logged-out users by default either, so any logged-out users that want to observe will need to visit the sub-group directly (or you're welcome to email me and request an invite so you can register and subscribe).

      I'll also be setting up scheduled posts to post automatically for each day's puzzle and possibly some other things, but we can discuss all of that inside the sub-group.

      Edit: All of the topics have now been moved back into ~comp under the "advent of code.2019" tag, and the group deleted.

      37 votes