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movq
Reply to #y7edboa
@xuu Yes, exactly that. *But*: I do have more than 32 bits after all, when I use `double` or `long double`. 😲 I went with `long double` which has 80 bits even on DOS (63 bits mantissa, I think).
(I only wrote a brute-force thingy this morning, so I didn’t even think about doing anything related to polynomials or `double`. 😅 Even part 2 only took 55 ms. But for DOS, this wasn’t an option anyway, so I did the proper math while waiting for something at work. 🤣)
It’s still a bit surprising to me. Usually, AoC doesn’t require such tricks and most things fit neatly into 32 bits. Maybe there’s a better solution after all. 🤔 I might have a look at reddit.
3 hours ago
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lyse
Reply to #ebrldga
@movq Glad you like it, too. :-) Same here, hardly any white left. Just a wee bit on few North facing sides.
3 hours ago
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lobste_rs
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hashtable
**Il a bien envie d’emmerder tous les Français**
Ouf, la sévère flambée d’inflation qui a touché l’Occident ces derniers mois montre des signes d’affaiblissement. Ceci s’accompagne immédiatement d’un grand soulagement chez Bruno Le Maire dont certains des sphincters vont à nouveau pouvoir se dilater normalement. “Nous sortons de la crise inflationniste”, se réjouit-il en n’imaginant pas une seule seconde que le pays sort […] ⌘ Read more
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9 hours ago
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xuu
Reply to #irslaoq
@prologic day 6 is super easy if you have int64 and some binomial theory. Skip ahead for the easy stars and catch up!
10 hours ago
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prologic
Reply to #irslaoq
@movq Yeah you are right! 🤗 Thank you for re-motivating me 🙇♂️ However I am a day behind now, but I will catch up 🤞 My goal started out completing this year's #AdventOfCode writing all solutions in Go and mostly using functional style programming 😁
10 hours ago
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prologic
Reply to #mniqw3q
@jason Works! 😇
10 hours ago
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xuu
Reply to #y7edboa
Oh.. Right. Need subtract and divide too for the binomial
10 hours ago
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xuu
Reply to #y7edboa
@movq it shouldn't need a full bignum implementation right? Just some left and right shifts for the sq/sqrt and carry for the addition right?
10 hours ago
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lobste_rs
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10 hours ago
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xuu
So today's #adventofcode was solved with no programming. Just a bit o maths and wolfram/alpha
10 hours ago
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10 hours ago
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11 hours ago
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movq
Today’s AoC puzzle is a very simple problem on modern machines, but quite tricky for me: It involves a number that doesn’t fit into 32 bits. 🤔 I wonder if/how I can manage to port this beast to DOS. (I once wrote a “big int” library myself, but that was *ages* ago and I hardly remember it anymore.)
11 hours ago
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movq
Reply to #zktowyq
@xuu I see, interesting. 🤔 Now I’m curious if I could optimize my brute-force solution as well. 😅 (I wrote a “proper” solution in the meantime after watching a visualization by someone else.)
11 hours ago
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xuu
Reply to #u3exsfa
The word forms is part two. In this one you want to find the first digit and last digit. Think searching '1' - '9'
12 hours ago
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lobste_rs
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12 hours ago
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xuu
Reply to #zktowyq
All brute force.
Its the latest ryzen 7 chipset for laptop/mini form factor.
I am very surprised about the times others are getting. I guess that's the difference between interpreted and compiled showing.
12 hours ago
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movq
Reply to #ebrldga
@lyse What a great scenery. 😊 I hope the snow comes back soon. It’s all gone at the moment and well above 0°C.
13 hours ago
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13 hours ago
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movq
Reply to #zktowyq
@xuu And that is still a brute-force attempt? That’d be *really* fast. 😳 Are you doing anything clever or is your CPU just that powerful? 😅
13 hours ago
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