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๐ - 2024 DAY 25 SOLUTIONS -๐
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this post was submitted on 25 Dec 2024
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Advent Of Code
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An unofficial home for the advent of code community on programming.dev!
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.
AoC 2024
Solution Threads
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| 23 | 24 | 25 |
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Congrats on reaching the finish line!
The bit that caught me out was that the key + lock should equal 5 in reality, instead of being up to 5 in the challenge.
Thanks! I quickly wrote it but didn't think to count things. I just took the index of where the edge was located at and ran with it.
So I don't understand what you mean by equal 5. Could you elaborate? Cause I must have read the challenge text differently.
For a real world lock, the key height + pin height must equal the height of the barrel exactly. If it is taller or shorter, the lock will bind and not open.
https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Pin_tumbler_no_key.svg/400px-Pin_tumbler_no_key.svg.png
For the challenge, as long as its not overlapping (too tall), its a valid key/lock pair.
Oh! I didn't think it that way, lol, I was thinking this quickly through. I didn't think of relating to physical locks because it clearly said it was virtual. But I guess, there could theoretically be a physical tumbler lock with 0-5 spacers, it would just be a tall lock. You know like how some master keys have it so that there are spacers for the master key or the client key to open the lock.