Day 15: Lens Library

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  • sjmulder@lemmy.sdf.org
    ·
    7 months ago

    C

    Yes, it's a hash table. Did I pick a language with built in hash tables? Of course I didn't. Could I have used one of the many libraries implementing one? Sure. But the real question is, can we make do with stuffing things into a few static arrays at nearly zero memory and runtime cost? Yes!

    In the spirit of Fred Brooks, it’ll suffice here to show my data structures:

    struct slot { char label[8]; int lens; };
struct box { struct slot slots[8]; int nslots; };

static struct box boxes[256];

    https://github.com/sjmulder/aoc/blob/master/2023/c/day15.c