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God I wish there was an easier way to do this (programming.dev)

submitted 7 months ago* (last edited 7 months ago) by andioop@programming.dev to c/programming_horror@programming.dev

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[-] SpeakinTelnet@programming.dev 15 points 6 months ago* (last edited 6 months ago)

def is_even(n):
    match n:
        case 1:
            return False
        case 0:
            return True
        # fix No1
        case n &lt; 0:
            return is_even(-1*n)
        case _:
            return is_even(n-2)

[-] sloppy_diffuser@sh.itjust.works 5 points 6 months ago

Python added match/case?! Bunch of mypy issues have been closed too. Maybe its time to dust off some old projects.

[-] SpeakinTelnet@programming.dev 2 points 6 months ago

It was added in 3.10 and is surprisingly complete. The tutorial pep is a good starting point to see what it can accomplish

[-] Chobbes@lemmy.world 3 points 6 months ago

Well... At least it's tail recursive.

[-] AlyxMS@hexbear.net 2 points 6 months ago

What if the input is negative

[-] SpeakinTelnet@programming.dev 4 points 6 months ago

Fixed!

this post was submitted on 07 Dec 2023

193 points (91.1% liked)

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