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    1. Day 11: Dumbo Octopus

      Today's problem description: https://adventofcode.com/2021/day/11 Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it...

      Today's problem description: https://adventofcode.com/2021/day/11

      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
    2. Day 10: Syntax Scoring

      Today's problem description: https://adventofcode.com/2021/day/10 Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it...

      Today's problem description: https://adventofcode.com/2021/day/10

      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
    3. Day 9: Smoke Basin

      Today's problem description: https://adventofcode.com/2021/day/9 Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it...

      Today's problem description: https://adventofcode.com/2021/day/9

      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 8: Seven Segment Search

      Today's problem description: https://adventofcode.com/2021/day/8 Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it...

      Today's problem description: https://adventofcode.com/2021/day/8

      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
    5. Day 7: The Treachery of Whales

      Today's problem description: https://adventofcode.com/2021/day/7 Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it...

      Today's problem description: https://adventofcode.com/2021/day/7

      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>
      
      14 votes
    6. Day 1: Sonar Sweep

      Today's problem description: https://adventofcode.com/2021/day/1 Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it...

      Today's problem description: https://adventofcode.com/2021/day/1

      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
    7. Day 4: Giant Squid

      Today's problem description: https://adventofcode.com/2021/day/4 Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it...

      Today's problem description: https://adventofcode.com/2021/day/4

      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
    8. Fortnightly Programming Q&A Thread

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads. Don't forget to format your code using the triple...

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads.

      Don't forget to format your code using the triple backticks or tildes:

      Here is my schema:
      
      ```sql
      CREATE TABLE article_to_warehouse (
        article_id   INTEGER
      , warehouse_id INTEGER
      )
      ;
      ```
      
      How do I add a `UNIQUE` constraint?
      
      3 votes
    9. Day 6: Lanternfish

      Today's problem description: https://adventofcode.com/2021/day/6 Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it...

      Today's problem description: https://adventofcode.com/2021/day/6

      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>
      
      14 votes
    10. Day 2: Dive!

      Today's problem description: https://adventofcode.com/2021/day/2 Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it...

      Today's problem description: https://adventofcode.com/2021/day/2

      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>
      
      16 votes
    11. Day 3: Binary Diagnostic

      Today's problem description: https://adventofcode.com/2021/day/3 Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it...

      Today's problem description: https://adventofcode.com/2021/day/3

      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
    12. Spiders

      Is anyone here familiar with crawling the web? I’m interested in broad crawling, rather than focusing on particular sites. I’d appreciate pretty much any information about how this is usually...

      Is anyone here familiar with crawling the web? I’m interested in broad crawling, rather than focusing on particular sites. I’d appreciate pretty much any information about how this is usually done, and things to watch out for if attempting it.

      10 votes
    13. The temporary sub-group for Advent of Code is back - subscribe if you're interested!

      As we did for the last two years, I've set up a temporary sub-group that we can use for this year's Advent of Code at ~comp.advent_of_code I moved all the Day 1 solutions that were posted in the...

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

      I moved all the Day 1 solutions that were posted in the thread that @JRandomHacker posted into a dedicated post for the Day 1 problem, and I've set up scheduled posts to happen automatically as each day's puzzle unlocks.

      I also automatically subscribed everyone that voted on that original topic, as well as everyone that posted a comment in any of the previous years' 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).

      24 votes
    14. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      4 votes
    15. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      6 votes
    16. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      5 votes
    17. Fortnightly Programming Q&A Thread

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads. Don't forget to format your code using the triple...

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads.

      Don't forget to format your code using the triple backticks or tildes:

      Here is my schema:
      
      ```sql
      CREATE TABLE article_to_warehouse (
        article_id   INTEGER
      , warehouse_id INTEGER
      )
      ;
      ```
      
      How do I add a `UNIQUE` constraint?
      
      3 votes
    18. Fortnightly Programming Q&A Thread

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads. Don't forget to format your code using the triple...

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads.

      Don't forget to format your code using the triple backticks or tildes:

      Here is my schema:
      
      ```sql
      CREATE TABLE article_to_warehouse (
        article_id   INTEGER
      , warehouse_id INTEGER
      )
      ;
      ```
      
      How do I add a `UNIQUE` constraint?
      
      3 votes