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Not my problem sort (infosec.pub)
submitted 7 months ago by [email protected] to c/[email protected]
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[-] [email protected] 150 points 7 months ago

Reminds me of quantum-bogosort: randomize the list; check if it is sorted. If it is, you're done; otherwise, destroy this universe.

[-] [email protected] 96 points 7 months ago

Guaranteed to sort the list in nearly instantaneous time and with absolutely no downsides that are capable of objecting.

[-] [email protected] 48 points 7 months ago

You still have to check that it's sorted, which is O(n).

We'll also assume that destroying the universe takes constant time.

[-] [email protected] 44 points 7 months ago

In the universe where the list is sorted, it doesn't actually matter how long the destruction takes!

[-] [email protected] 13 points 7 months ago

It actually takes a few trillion years but its fine because we just stop considering the "failed" universes because they will be gone soon™ anyway.

[-] [email protected] 9 points 7 months ago

Eh, trillion is a constant

[-] [email protected] 8 points 7 months ago

amortized O(0)

[-] [email protected] 9 points 7 months ago

We'll also assume that destroying the universe takes constant time.

Well yeah just delete the pointer to it!

[-] [email protected] 2 points 7 months ago

universe.take()

[-] [email protected] 16 points 7 months ago

Except you missed a bug in the "check if it's sorted" code and it ends up destroying every universe.

[-] [email protected] 7 points 7 months ago

There's a bug in it now, that's why we're still here.

[-] [email protected] 25 points 7 months ago

The creation and destruction of universes is left as an exercise to the reader

[-] [email protected] 4 points 7 months ago

Creation is easy, assuming the many-worlds interpretation of quantum mechanics!

[-] [email protected] 17 points 7 months ago

Instead of destroying the universe, can we destroy prior, failed shuffle/check iterations to retain o(1)? Then we wouldn't have to reload all of creation into RAM.

[-] [email protected] 6 points 7 months ago

Delete prior iterations of the loop in the same timeline? I'm not sure there's anything in quantum mechanics to permit that...

[-] [email protected] 12 points 7 months ago

What library are you using for that?

[-] [email protected] 29 points 7 months ago* (last edited 7 months ago)

is-sorted and a handful of about 300 other npm packages. Cloning the repo and installing takes about 16 hours but after that you're pretty much good for the rest of eternity

[-] [email protected] 8 points 7 months ago

that explains why it took god 7 days to make the universe

[-] [email protected] 0 points 7 months ago* (last edited 7 months ago)

We still suffer from the runtime errors that could've been caught at compilation time.

Anti Commercial-AI license

[-] [email protected] 11 points 7 months ago

In Python you just use

import destroy_universe
[-] [email protected] 2 points 7 months ago

Since randomizing the list increases entropy, it could theoretically make your cpu cooler just before it destroys the universe.

this post was submitted on 08 Nov 2024
754 points (98.2% liked)

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