advent-of-code
Collection of JS solutions for puzzles from adventofcode.com 🎁🎄 (by romellem)
aoc2020
Advent of Code 2020 (by ednl)
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advent-of-code | aoc2020 | |
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14 | 13 | |
69 | 0 | |
- | - | |
8.5 | 0.0 | |
3 months ago | 6 months ago | |
JavaScript | C | |
MIT License | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
advent-of-code
Posts with mentions or reviews of advent-of-code.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-12-23.
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-🎄- 2021 Day 24 Solutions -🎄-
For a full write-up, see this repo, and for a non-annotated solution, see:
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-🎄- 2021 Day 18 Solutions -🎄-
Otherwise, the main way I solved this was with a flat list of tokens rather than a truly nested structure. This was very similar to last year's Day 18, which I also solved in a similar manner.
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-🎄- 2021 Day 9 Solutions -🎄-
Code can be found in this repo.
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-🎄- 2021 Day 7 Solutions -🎄-
code
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-🎄- 2021 Day 5 Solutions -🎄-
First 2D one! Got to reuse my InfiniteGrid class, which made this much easier.
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-🎄- 2020 Day 24 Solutions -🎄-
Source code is available here.
aoc2020
Posts with mentions or reviews of aoc2020.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-07-06.
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Need help finding good python solutions
I got all but one star in 2020 when I did it in Python: https://github.com/ednl/aoc2020 but I'm afraid there may be some short variable names despite not doing it for speed.
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2015-2022: What solution to a problem are you the most proud of
I liked my solution for https://adventofcode.com/2020/day/17 Game of Life in 3D and 4D: https://github.com/ednl/aoc2020/blob/main/day17.py
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2020 Day 8.2 in Python - trying to figure out how to do this efficiently?
Day 8 runs in 0.02 s using python 3.9 on my M1 Mac Mini. Just flipping in part 2, no special optimisation. My code: https://github.com/ednl/aoc2020/blob/main/day08.py
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[2020] [Rust] Solving Advent of Code 2020 in under a second
For instance, I wrote this in C for day 15 https://github.com/ednl/aoc2020/blob/main/day15.c which runs in 1.635 s on a Raspberry Pi 4 (4 GB, RPiOS 32-bit on SSD, overclocked to 1.8 GHz) when timing on the command line with "time", taking the lowest "user" value of about 10 manual runs. Compiled with gcc -Ofast (version 8.3.0).
Yep, linked above, or: https://github.com/ednl/aoc2020/blob/main/day15.c
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[2020] Optimized solutions in C++ (291 ms total)
Day 23 part 2 in 0.06 s on a dual core 1.3 GHz i5 Haswell (2013 MB Air) https://github.com/ednl/aoc2020/blob/main/day23.c because of a simple array as a linked list.
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[2020 Day *][C99] Computers are fast: AoC 2020 in < 2s, including compile time
Day 23 part 2 (1 million cups, 10 million moves) runs in 0.06 s on my 2013 dual core Haswell i5 1.3 GHz. Main reason is a super fast simulated linked list via a pre-allocated array of integers. Source https://github.com/ednl/aoc2020/blob/main/day23.c
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-🎄- 2020 Day 24 Solutions -🎄-
Python, Numpy, SciPy Took me a while to figure out how to calculate the new state with different kernels for odd and even rows. In the end, it means doing almost twice the work. Still about 9x faster than the native Python version I did first. Part 2 below, full code at https://github.com/ednl/aoc2020/blob/main/day24alt.py
Thanks to /u/thomasahle for encouraging me to implement axial coordinates, which made it a lot easier. Also thought of a better way to parse the input in one go. And this allowed me to tighten up the grid dimensions. Runs in under a second on a very old laptop, half of which is because of the scipy import ... https://github.com/ednl/aoc2020/blob/main/day24alt2.py
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-🎄- 2020 Day 23 Solutions -🎄-
Yes, definitely don't create a list for every pick up. No need to insert and delete if you use an array as a linked list. My code: https://github.com/ednl/aoc2020/blob/main/day23.py
What are some alternatives?
When comparing advent-of-code and aoc2020 you can also consider the following projects:
AdventOfCode2020
adventOfCode - Solutions to the 'Advent of Code' (http://adventofcode.com) programming challenges in Elm
AlgorithmProblems - Solutions to Algorithm Problems :chart_with_upwards_trend: :neckbeard:
AOC2020
hac - HAC Ada Compiler - a small, quick Ada compiler fully in Ada
adventofcode - Advent of code solution programs.
advent-of-code-2020 - :christmas_tree: My Advent of Code solutions in Rust. http://adventofcode.com/2020
AoC-2020-solutions - My Python solutions to Advent of Code 2020!
Advent-of-Code-2k20
advent_of_code - #adventOfCode
advent-of-code - Advent of code solutions
aoc-2020 - Advent of Code 2020