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submitted 3 months ago* (last edited 3 months ago) by NateNate60@lemmy.world to c/programmerhumor@lemmy.ml

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^.?$|^(..+?)\1+$

Matches strings of any character repeated a non-prime number of times

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[-] captain_aggravated@sh.itjust.works 41 points 3 months ago

knowing Matt Parker it only matches prime numbers or multiples of e or something.

looks at <ansewer>

Yeah see?

[-] frigidaphelion@lemmy.world 3 points 3 months ago

this post was submitted on 31 Oct 2024

340 points (98.0% liked)

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