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๐ - 2024 DAY 22 SOLUTIONS - ๐
(programming.dev)
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Advent of Code is an annual Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like.
Solution Threads
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console.log('Hello World')
C
Really proud of this one! Started with with an O(n^atoms in the universe) scan which took 44s even after adding a dedup check.
But iterating on a trick to encode the deltas for the dedup check, using it to build a mapping table here, a lookup there etc brought it down to a very fast, fairly low memory, linear complexity solution!
Code
day22 0m00.04s real
https://codeberg.org/sjmulder/aoc/src/branch/master/2024/c/day22.c