Programmer Humor

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Returns a sorted list in O(1) time (programming.dev)

submitted 9 months ago by [email protected] to c/[email protected]

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[–] [email protected] 97 points 9 months ago (14 children)

While this doesn't work all the time, when it does, it's really fast. Similar to the isPrime function, it's correct most of the time and is much faster than alternative implementations:

function isPrime(number) {
    return false;
}

[–] [email protected] 36 points 9 months ago* (last edited 9 months ago) (5 children)

What your code can do is run this first and if it returns false then do a quick double check using a traditional isPrime function. Really speeds things up!

[–] [email protected] 5 points 9 months ago (1 children)

Good idea, but it would be much faster if you do the double-check on true instead.