Advent-of-Code-2021 Alternatives
Similar projects and alternatives to Advent-of-Code-2021
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adventofcode
Solutions for problems from AdventOfCode.com (by bhosale-ajay)
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Scout APM
Less time debugging, more time building. Scout APM allows you to find and fix performance issues with no hassle. Now with error monitoring and external services monitoring, Scout is a developer's best friend when it comes to application development.
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advent-of-code-go
(All 7 years of) adventofcode.com solutions in Go
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SonarQube
Static code analysis for 29 languages.. Your projects are multi-language. So is SonarQube analysis. Find Bugs, Vulnerabilities, Security Hotspots, and Code Smells so you can release quality code every time. Get started analyzing your projects today for free.
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adventofcode
Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020 and 2021 in Scala (by sim642)
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AdventOfCode2021
My solutions to https://adventofcode.com/2021 (by willkill07)
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Advent-of-Code-2021 reviews and mentions
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[2021] What did you learn or take away from AoC 2021?
I keep a diary of what I learned, revised or improved at in my repo.
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-🎄- 2021 Day 23 Solutions -🎄-
Python - needs over 45 seconds but WORKS, which is good enough for me after a couple of days, especially given the fact that I can spend at most 1-2 hours a day solving this... The ugliest part are probably the hard-coded distances from rooms to corridors and vice versa, but what the heck, it works.
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[2021 Day 19] Part 1: count correct for sample, too low for actual + no idea how to find out if orientation is correct
For reference, here's my work-in-progress code (Python). But most imporatntly I want to describe my line of thinking :
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-🎄- 2021 Day 18 Solutions -🎄-
As a complete hobbyist, I was glad I figured out this had something to do with binary trees. It took about an hour to design everything on paper. Then I started to code it...and then debug...and four hours later I finally arrived at this solution.
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-🎄- 2021 Day 15 Solutions -🎄-
Python
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-🎄- 2021 Day 14 Solutions -🎄-
I'm not sure what kind of brainfog descended on me this morning. After part 1 I instantly knew I should just count the pairs and update their numbers but somehow couldn't figure out how to do it. It took me almost an hour before it dawned on me that...wait for it...a pair splits into two pairs. After that and some off-by-one debugging I came up with this solution. Defaultdict for the win.
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-🎄- 2021 Day 13 Solutions -🎄-
Python - two alternative solutions (lines 25-65 and 68-106, not including the parser)
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[2021 Day 11] Flashing octopi
This is not my first visualisation but for the first time I decided to share one here. It looks worse on screen due to flickering (I print the board and clear the screen after each step). Here's the code.
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-🎄- 2021 Day 10 Solutions -🎄-
Anyway, here's my stack-based Python solution. It could be made way shorter because there's actually no need to store data separately about valid lines (valid == not corrupt and empty stack), but I thought the verbose approach makes the solution a bit more understandable.
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-🎄- 2021 Day 9 Solutions -🎄-
Figuring out that part 2 was essentially the 'find islands in a 2d matrix' problem was the easy thing. Remembering how to implement a DFS or BFS was another story. So I ended up implementing both for learning purposes (Python).
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-🎄- 2021 Day 8 Solutions -🎄-
Here's my approach (I have no CS background) in Python. In short:
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-🎄- 2021 Day 6 Solutions -🎄-
My first thoughts were OOPish, but then I read the puzzle again and saw the dreaded word: 'exponential'. So here's another Python solution with deque.
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-🎄- 2021 Day 5 Solutions -🎄-
Python and another reason why defaultdict is my best friend. Not clean enough yet - I can probably get rid of the repetitions...
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