This is completely unrelated to the meme at hand, but the title just reminded me that for a while, Merriam-Webster mistakenly included the word “Dord” to mean density - because an editor misread the entry for “D or d” as an abbreviation of density.
In this case, it’s a function that takes an Integer and three values of a generic type a and then returns a list of tuples of those same as.
So, those as are just any types representing the towers. Could be strings, integers, custom data types, whatever. The returned tuples represent movements between towers.
Following that are actually two definitions of the function.
…is the recursion base case. Function definitions are applied, whenever they match, being evaluated top-to-bottom.
This line specifies that it only matches, if that first Integer is 0. It does not care what the remaining parameters are, so matches them with a wildcard _.
Well, and to the right side of the equals sign, you’ve got the return value for the base case, an empty list.
Then comes the more interesting line, the recursion step:
<span style="color:#323232;">hanoi n a b c </span><span style="font-weight:bold;color:#a71d5d;">=</span><span style="color:#323232;"> hanoi (n</span><span style="font-weight:bold;color:#a71d5d;">-</span><span style="color:#0086b3;">1</span><span style="color:#323232;">) a c b </span><span style="font-weight:bold;color:#a71d5d;">++</span><span style="color:#323232;"> [(a, b)] </span><span style="font-weight:bold;color:#a71d5d;">++</span><span style="color:#323232;"> hanoi (n</span><span style="font-weight:bold;color:#a71d5d;">-</span><span style="color:#0086b3;">1</span><span style="color:#323232;">) c b a
</span>
This line matches for any remaining case. Those small letter names are again wildcards, but the matched value is placed into a variable with the provided name.
And then, well, it recursively calls itself, and those ++ are list concations. This line’s only real complexity is the usual Tower Of Hanoi algorithm.
There are two Linux paradigms that I consider stupid. One is the use of centralized software repositories managed by the distro instead of individual developer maintained installers. The other one is file system case sensibility. They already admitted defeat on the first one with the rise of containerised applications. I wonder how much longer they’ll keep the charade on the second one.
Indeed, but I’m sure we can agree that it’s pretty stupid for every distro to maintain its own repo. That’s a lot of duplicate work, which could be spend on more useful things. Luckily flatpak is well on its way to change that
Hm… But different distros have different philosophies (not just) about updates. That’s part of why people choose a specific distro.
Theres still plenty speaking against flatpak (larger sizes, problems with GTK/qt themes, and it’s only meant for GUI applications - you still need a separate system for the kernel and lower-level/cli tools. And frankly, that makes flatpak unusable to me, because the purpose of a centralized package management system is not having duplicate systems).
So in short: y’all are gonna pry pacman from my cold, dead hand.
I’m not against distros as a whole, some extra work will be inevitable because people have different preferences, but it feels like a waste having a Firefox package for arch, ubuntu, fedora and Debian while essentially all being identical. Indeed flatpak isn’t perfect yet, but it works great for me and it’s steadily improving
I see this meh-meh come up occasionally, and I’m always amused because designers are constantly looking at the competition and adjusting to suit. Why do you think all sebtites look the same?
Well–well look. I already told you: I deal with the god damn customers so the engineers don’t have to. I have people skills; I am good at dealing with people. Can’t you understand that? What the hell is wrong with you people?
If you need to run a set of commands or a script with fish you can just toss them in a file and run bash file.sh. I have been daily driving fish for years and I don’t even have think about it.
I personally like xonsh despite the minor amount of wonkiness it has, it’s so nice to have python available directly in your shell, it takes the “i don’t care about the quality of my code i just want this shit to work with minimal effort”-ness of bash and turns it up to 13.
No. Zsh. It’s pretty easy to have a nice auto compl. No need for omz. After knowing poweline10k I just use it and syntax highlight plugin, manually installed. There is no need to add entire omz.
Did you guys find this hard? There are only four possible ways to move a ring, two of which are disallowed by the rules. Out of the remaining two, one of them is simply undoing what you just did.
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