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A comment on Ask HN: What are some cool but obscure data structures you know about?. Parent comment

Re:Ask HN: What are some cool but obscure data structures yo... by pacaro on Friday July 22, 2022 @12:15AM (#32188464)
It's tried and tested for sure, I first encountered them in 94 but I assume they're much older.

A little sleuthing shows that (TIL) they are an application of Z-order curves, which date back to 1906

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