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What are some cool and obscure data structure you know of? (programming.dev)
submitted 4 months ago by protein@programming.dev to c/programming@programming.dev
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[-] QueenMidna@lemmy.ca 4 points 4 months ago

I've been knee-deep in these lately so I'm a big fan

Theta sketches!

Do you want to approximately count a large volume of items, but save the state for later so you can UNION , INTERSECT and even DIFF them? Then Thetas are right for you!

Or basically anything in the Apache Datasketches lbrary.

this post was submitted on 01 Jan 2026
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