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by rspencer
298 days ago
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It is equivalent because it's not a plus-scan but a (0^+)-scan which resets every time it hits a null (there's a more in depth explanation here https://robertandrewspencer.com/aoc_2022_1/ ) Perhaps q did both force you to consider what was happening, and hide it from you... |
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Though hopefully, once the idiom is learned, I'll be able to remember it :)
Curious as to why a scan \ rather than a reduction /?