aoc2021
adventofcode
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aoc2021 | adventofcode | |
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9 | 86 | |
1 | 16 | |
- | - | |
0.0 | 7.3 | |
9 months ago | 4 months ago | |
C | TypeScript | |
MIT License | - |
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aoc2021
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[2021 day 6] What's you're fastest solution?
This in C runs in 215 us on a Pi 4 with the cpu in performance mode: https://github.com/ednl/aoc2021/blob/main/day06.c
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[DAY 6] C# solution with commentary
I took a few hints from the solutions thread and made this in C which executes in 0.4 milliseconds on a Raspberry Pi 4: https://github.com/ednl/aoc2021/blob/main/day06.c
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[2021 Day 18] [C++] Overcomplicated solution after a lot of grief and hair loss.
Good outcome. I'm not well versed in C++ so I can't say much about it. For my solution in C, I figured that a full-blown tree was too much work and also not really needed if I kept track of the level myself, because everything is always in the same order left to right, just expanding and contracting. So I used a linked list and a SF number became an array of SF digits where each digit is a struct { left,right,level,value }. I guess the trickiest bit was to do the accountancy of keeping everything linked correctly when exploding and splitting.
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[2021] What did you learn or take away from AoC 2021?
The constant time thing is counting fish in an age histogram mod 9, right? I think that idea floated around the solution thread. I am no longer sure if I saw it there first or came up with it myself..... but here's my implementation in C: https://github.com/ednl/aoc2021/blob/main/day06.c
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-🎄- 2021 Day 14 Solutions -🎄-
Added lots of comments as explanation of the ideas and the code: https://github.com/ednl/aoc2021/blob/main/day14.c
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-🎄- 2021 Day 6 Solutions -🎄-
Good ol' C code. Very simple program once you think of making a circular buffer from the population histogram by age bins, and simulating every day. I got stuck for a while trying to come up with a direct mathematical function which never gave me the exact number. The crux:
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-🎄- 2021 Day 4 Solutions -🎄-
C, which takes some bookkeeping but it can be fast. I didn't push for every last drop of speed but still: about 3 ms on a Raspberry Pi 4 (1.8 GHz overclock, Buster desktop, not very quiet so I picked a good run). Code with lots of comments
adventofcode
- -❄️- 2023 Day 10 Solutions -❄️-
- -❄️- 2023 Day 9 Solutions -❄️-
- -❄️- 2023 Day 8 Solutions -❄️-
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-❄️- 2023 Day 7 Solutions -❄️-
The only code differs for two parts is as follows - https://github.com/bhosale-ajay/adventofcode/blob/master/2023/ts/D07.test.ts - under 80 lines.
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-❄️- 2023 Day 6 Solutions -❄️-
Easy day TypeScript, P1 - Brute Force, P2 - Formula
- -❄️- 2023 Day 5 Solutions -❄️-
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-❄️- 2023 Day 4 Solutions -❄️-
[LANGUAGE: TypeScript] Github - Under 40 lines, all parts running under 8ms.
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-❄️- 2023 Day 1 Solutions -❄️-
[LANGUAGE: TypeScript] TypeScript - Running under 30ms (both parts)
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-🎄- 2022 Day 25 Solutions -🎄-
F# This year I solved puzzles using TypeScript as well as F# - Day 18, 19, and 22 TBD
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-🎄- 2022 Day 24 Solutions -🎄-
F# - After looking at some Python solution calculated the position of blizzard for nth time instead of maintaining the grid, which makes it easier with F#.
What are some alternatives?
AdventOfCode
AoC - my personal repo for the advent of code yearly challenge
aoc-2021 - Advent of code 2021 challenges written in Rust to learn the language and get more comfortable with the it (and sometimes I just use C++)
adventofcode - Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023 in Scala
adventofcode - Advent of Code challenge solutions
advent-of-code-go - All 8 years of adventofcode.com solutions in Go/Golang; 2015 2016 2017 2018 2019 2020 2021 2022
Advent-of-Code - Advent of Code
advent-of-code
aoc2021 - Advent of Code 2021 on my homemade 16-bit CPU SCAMP
rockstar - The Rockstar programming language specification
nom - Rust parser combinator framework
advent_of_code - Solutions to programming puzzles on Advent of Code