1. pxx Dec 21, 2025

   c++20 offers `consteval` to make this clear, but you can do some simple macro wizardry in c++11 to do this:

       #define foo(x) ( \
           (void)std::integral_constant<char, (x)[0]>::value, \
           foo_impl(x) \
       )
   

   (the re-evaluation of x doesn't matter if it compiles). You can also use a user-defined literal which has a different ergonomic problem.
2. pxx Dec 14, 2025

   no the point is that there should be _more_ shovelware like your app. the fact you were able to publish shovelware doesn't mean that there's a "revolution"; the number of apps published per time doesn't seem to be going up.
3. pxx Dec 13, 2025

   It's still there. Check the pg_dump command.
4. pxx Dec 13, 2025

   You can give your postal carrier a gift card but they're not allowed to accept cash or a prepaid card. https://about.usps.com/postal-bulletin/2012/pb22349/html/cov...
5. pxx Dec 13, 2025

   Yeah, this concept is interesting but the fact that the simplest test case gives what's fundamentally a surprising result is very annoying.

   It also doesn't help that in the example, the expected outcome of 53.3333/46.6667 isn't even considered.

6. pxx Nov 30, 2025

   phantom drive B is explicitly mentioned in https://en.wikipedia.org/wiki/Drive_letter_assignment#Order_...

   the linked source checks out. diskcopy will also do this for you if you give it source = dest.

7. pxx Nov 30, 2025

   I don't know how much they "stand out" because their frequency makes it so that the optimal global leaderboard strat is often to just try something dumb and see if you win input roulette.

   if we just look at the last three puzzles: day 23 last year, for example, admitted the greedy solution but only for some inputs. greedy clearly shouldn't work (shuffling the vertices in a file that admits it causes it to fail).

8. pxx Nov 30, 2025

   It's only a small selection of inputs.

   I have a solve group that calls it "Advent of Input Roulette" because (back when there was a global leaderboard) you can definitely get a better expected score by just assuming your input is weak in structural ways.

9. pxx Nov 12, 2025

   Nobody wants 10 months in a year. What we want is 13 28-day months a year plus one or two intercalary days. But organized religion gets in the way.
10. pxx Nov 12, 2025

    I saw the diagram in the original blogpost, laughed, but after a bit of sketching it out I think we're both wrong. R/2R ladders are useful in DACs (and are really cool there) but don't look like they're used in digipot applications.

    It seems like actual digipot ICs use the "2^n discrete resistors" approach. The IC used in this project is a MCP4141 which explicitly states in section 5.1 of its datasheet that for 7-bit (8-bit) devices there are 128 (256) resistors in a string between the terminals.

    I'm a bit surprised this seems to be the best approach, but with IC manufacturing the joint problems of "a bunch of identical components" and "wiring it all up" are much less of a problem than if you were to wire this up by hand.

11. pxx Oct 28, 2025

    "All" isn't right.

    You can only encode decision problems in NP into a SAT instance of polynomially-balanced size. Sure, that's a lot of things, but there are things provably not in this set.

12. pxx Oct 13, 2025

    Is that actually the story of Uber? They didn't start with "let a random person drive you around"; they did licensed-limousine-by-app (which is the incremental "boring" improvement this post hates) until Lyft came around. They quickly copied the model (Lyft launched in May; "Uber X" in July 2012 [0]) but that's something to be said for agility and not necessarily getting the right idea at first.

    [0] here's a launch announcement with Lyft being listed as already being operational https://techcrunch.com/2012/07/01/uber-opens-up-platform-to-...

13. pxx Oct 2, 2025

    wtf, is this comment also AI written? this is peak satire
14. pxx Sep 26, 2025

    An A press is an A press. You can't say it's only a half.
15. pxx Sep 24, 2025

    it's not even aarch64. but what they're saying is they don't want to deal with the support nightmare of supporting anything but the unmodifiable SteamOS image.
16. 4 points Sep 16, 2025

    Happy Yeltsin Supermarket Day!

    0 comments pxx cato.org
17. pxx Sep 6, 2025

    This is a pretty neat problem. Maybe this isn't the activity for you...
18. pxx Sep 5, 2025

    libgen.help is frequently updated
19. pxx Sep 4, 2025

    An A press is an A press. You can't say it's only a half
20. pxx Aug 30, 2025

    there are shortcuts but they can also compose their response in a richer text editor then paste. matched quotation marks also typically show up.

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