advent-of-code-2021
My Advent Of Code 2021 solutions (by jszafran)
advent-of-code-2021 | AdventOfCode2021 | |
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2 | 12 | |
2 | 1 | |
- | - | |
4.1 | 2.6 | |
over 2 years ago | over 2 years ago | |
Python | Perl | |
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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-2021
Posts with mentions or reviews of advent-of-code-2021.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-12-05.
- -🎄- 2021 Day 6 Solutions -🎄-
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-🎄- 2021 Day 5 Solutions -🎄-
Here's my pretty verbose solution in Python (probably will be easier to read on github than here): https://github.com/jszafran/advent-of-code-2021/blob/master/day-5/solution.py
AdventOfCode2021
Posts with mentions or reviews of AdventOfCode2021.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-12-17.
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-🎄- 2021 Day 18 Solutions -🎄-
Full program on GitHub.
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-🎄- 2021 Day 15 Solutions -🎄-
Full program including code to deal with heaps, on GitHub.
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[2021 Day 11 (Part 2)] What input takes the most steps to synchronize?
Program I used for the above results
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-🎄- 2021 Day 8 Solutions -🎄-
See my solution on GitHub.
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Day 6 Proof of Correctness
Note also that you can solve this without a complexity dependency on n. Most solutions I have seen, including mine run in time O(tD), where t is the maximum value of a timer, and D the number of generation, requiring O(t) memory. (This is assuming we can do the required arithmetic operations in constant time, and each numbers require a fixed around of memory storage; if the number of fish gets huge, throw in an additional log n in the complexities, where n is the number of fish on the final day).
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-🎄- 2021 Day 6 Solutions -🎄-
Based on my matrix exponentiation solution, here is a closed-form solution:
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How do I read today's input ? Part 1
In my Perl solution of today (I assume, you mean 2021, Day 4), I read stuff in paragraph mode ($/ = "") which makes Perl split input on 2 or more newlines.
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2021 Day #4 (Part 1) [Native Python ONLY] - Conceptual Guidance?
I considered doing that for my (Perl) solution, but given the cards are small, that seemed overkill.
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-🎄- 2021 Day 4 Solutions -🎄-
Python implementation on GitHub
What are some alternatives?
When comparing advent-of-code-2021 and AdventOfCode2021 you can also consider the following projects:
aoc2021 - My Advent of Code 2021 puzzle solutions ⭐⭐
Elixir - Elixir is a dynamic, functional language for building scalable and maintainable applications
Advent-of-code - My solutions of adventofcode.com
Advent_of_Code_2021_Solutions_Java - Personal AoC/2021 Solutions in Java
adventofcode - Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023 in Scala
adventofcode - Advent of Code challenge solutions
adventofcode - Solutions for problems from AdventOfCode.com
adventofcode
adventofcode - Advent of code solutions
advent-of-code-2021 - My solutions to advent of code 2021 in deno/TS
advent-of-code - Advent of Code Solutions
Advent-of-Code - Advent of Code
advent-of-code-2021 vs aoc2021
AdventOfCode2021 vs Elixir
AdventOfCode2021 vs Advent-of-code
AdventOfCode2021 vs Advent_of_Code_2021_Solutions_Java
AdventOfCode2021 vs adventofcode
AdventOfCode2021 vs adventofcode
AdventOfCode2021 vs adventofcode
AdventOfCode2021 vs adventofcode
AdventOfCode2021 vs adventofcode
AdventOfCode2021 vs advent-of-code-2021
AdventOfCode2021 vs advent-of-code
AdventOfCode2021 vs Advent-of-Code