Programmer Humor

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Not everything can be done in constant time, that's O(k) (sh.itjust.works)

submitted 4 months ago by [email protected] to c/[email protected]

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[–] [email protected] 50 points 4 months ago* (last edited 4 months ago) (20 children)

How in the hell does anyone f— up so bad they get O(n!²)? 🤯 That's an insanely quickly-growing graph.

Curious what the purpose of that algorithm would have been. 😅

[–] [email protected] 39 points 4 months ago (13 children)

You have two lists of size n. You want to find the permutations of these two lists that minimizes a certain distance function between them.

[–] [email protected] 2 points 4 months ago (1 children)

Surely you could implement this via a sorting algorithm? If you can prove the distance function is a metric and both lists contains elements from the same space under that metric, isn’t the answer to sort both?

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

It's essentially the traveling salesman problem

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