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submitted 3 weeks ago* (last edited 3 weeks 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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[-] RiQuY@lemm.ee 3 points 3 weeks ago

Looks like APL to me.

this post was submitted on 31 Oct 2024

337 points (98.0% liked)

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