aoc21
Advent of code 2021. (by yxhuvud)
AdventOfCode2020
Advent of Code (by LennardF1989)
aoc21 | AdventOfCode2020 | |
---|---|---|
4 | 5 | |
2 | 0 | |
- | - | |
0.0 | 6.0 | |
over 1 year ago | 5 months ago | |
Crystal | C# | |
- | - |
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.
aoc21
Posts with mentions or reviews of aoc21.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-02-17.
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Advent of Code Day 24: Computing with Sets
The way I solved this was by squinting a little and realizing that every time a div instruction happened, then a certain number following it needed to be 0, depending on the value of certain constants embedded in the code, and also on certain other fields in the input. So instead of starting with an input number, it is possible to calculate the min and max values the fields may contain right there, as long as we embed the field positions in a stack.
As this is only going through the code once, this is virtually instantaneous and ended up as the day that was fastest of all days to compute.
https://github.com/yxhuvud/aoc21/blob/main/day24.cr
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[2021] Solving AoC with Rust before Python can start
My solution, https://github.com/yxhuvud/aoc21/blob/main/all_days.cr :
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Speeding up Dijkstra by a factor of 2700
Yes, though sometimes it is possible to replace a fully general priority queue with a faster structure that is using the structure of the problem at hand. For example, this problem (AoC day 15) has only ever a count of unique priorities that is 10 or fewer. That allows a queue implementation to be https://github.com/yxhuvud/aoc21/blob/main/day15.cr#L27-L51 , being amortized O(1) in both insertion and deletion. This pushed down the runtime another magnitude for me, the whole day running at 0.014s.
- -🎄- 2021 Day 18 Solutions -🎄-
AdventOfCode2020
Posts with mentions or reviews of AdventOfCode2020.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-12-18.
- -🎄- 2021 Day 19 Solutions -🎄-
- -🎄- 2021 Day 18 Solutions -🎄-
- -🎄- 2021 Day 17 Solutions -🎄-
- -🎄- 2021 Day 16 Solutions -🎄-
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2020 Day 18 Solutions
Solution can be found here: https://github.com/LennardF1989/AdventOfCode2020/blob/master/Src/AdventOfCode2020/Days/Day18.cs
What are some alternatives?
When comparing aoc21 and AdventOfCode2020 you can also consider the following projects:
nom - Rust parser combinator framework
aoc2021 - My solutions for the 2021 Advent of Code
Advent-of-Code - Advent of Code
advent-of-code - My Advent of Code solutions
aoc
adventofcode_2021 - AdventOfCode 2021
AoC_2021 - Advent of Code, 2021, Python
advent-2021 - [Moved to: https://github.com/Crazytieguy/advent-of-code]
Advent-of-Code - My solutions for the Advent of Code puzzles (work in progress).
advent-of-code-2021 - zig solutions to advent of code 2021
aoc2021
aoc2021 - Advent of Code 2021 - my answers
aoc21 vs nom
AdventOfCode2020 vs aoc2021
aoc21 vs Advent-of-Code
AdventOfCode2020 vs advent-of-code
aoc21 vs aoc
AdventOfCode2020 vs adventofcode_2021
AdventOfCode2020 vs AoC_2021
AdventOfCode2020 vs advent-2021
AdventOfCode2020 vs Advent-of-Code
AdventOfCode2020 vs advent-of-code-2021
AdventOfCode2020 vs aoc2021
AdventOfCode2020 vs aoc2021