adventofcode-solutions
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adventofcode-solutions | AdventOfCode2021 | |
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3 | 12 | |
23 | 1 | |
- | - | |
8.5 | 2.6 | |
4 months ago | over 2 years ago | |
C# | Perl | |
The Unlicense | - |
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adventofcode-solutions
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-🎄- 2022 Day 8 Solutions -🎄-
C#
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-🎄- 2021 Day 6 Solutions -🎄-
C# code
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-🎄- 2020 Day 22 Solutions -🎄-
My input: https://github.com/xPaw/adventofcode-solutions/blob/d5b979f4a4fe45b5c14c290c69cb7c7d323310ec/2020/data/day22.txt
AdventOfCode2021
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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?
Advent-of-Code - C# solutions for Advent of Code puzzles
Elixir - Elixir is a dynamic, functional language for building scalable and maintainable applications
adventofcode-2020 - Javascript solutions for Advent of Code 2020
Advent-of-code - My solutions of adventofcode.com
aoc2022
Advent_of_Code_2021_Solutions_Java - Personal AoC/2021 Solutions in Java
Advent-of-Code-2021 - My Participation for the Advent of Code 2021
adventofcode - Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023 in Scala
advent-of-code-go - All 8 years of adventofcode.com solutions in Go/Golang; 2015 2016 2017 2018 2019 2020 2021 2022
adventofcode - Advent of Code challenge solutions
aoc_2021 - advent of code 2021
adventofcode - Solutions for problems from AdventOfCode.com