!rant
... so... maybe not that much of a thing, but i think it is:

a gal (27 years old) i started teaching programming two weeks ago, who had literally no previous experience with programming, algoritmization nor c#...
... just now, after 3 lessons of 6 hours altogether, and after yesterday when i explained to her what arrays are and reminded her what loops do...

... invented bubble sort. on her own. no googling. on paper. no "trial and error code typing and running".

i'm actually pretty proud of her :)

... putting the algo concept into actual code will still be a bit of a struggle, but yeah, hell, can't help thinking that she's actually pretty smart :)

(p. s. fist lesson was i drew uml of a fibonacci algo and forced her to understand what it does, second lesson was i explained the minimum required c# syntax for her to be able to implement it and forced her to write it (with as little help as i could), third lesson was the concept of array and "okay, now here's array of numbers, make a function that will sort them")

looking forward to what will happen when i explain recursion and nudge her towards quicksort O:-)

At a restaurant in Augustow there was a sign: "please wait for the waiter"

it confused me. If I'm waiting for the waiter, then what/who's the waiter: the one who's being waited for or the one waiting?

If I'm waiting for the waiter, do I become the waiter?

I think this is a good spot for a recursion bug to occur, resulting in waiter leaks.

Knock knock.
Who's there?
Recursion.
Recursion who?
Knock knock.

Knock knock.
Who's there?
Recursion.
Recursion who?
Knock knock.

Recursion...

Back from the dead with more vaguely-obscure technical bullshit

Working on a chatbot for my BS-CS. Almost done with college, so the assignment is to make a bot that recommends you a CS career. Cool.

I get through making a joint personality and skill-interest quiz that gives you number grades on different spectra. So far, so good. But this project has to be done entirely in pandorabots' online editor. So no scripting. Zero scripting. 100% markup language. That means to even do math, you need to copy a standard library off GitHub.

I mean, that's fine and all, but the syntax is just atrocious, because everything in AIML is input->response. If you ask the bot "what is 5+5?" you must have it go:

- recognize pattern WHAT IS * + *
-> redirect -> XADD * XS *
-> do math -> recurse result
-> 10

uncomfy. Plus, variables can only be accessed through <get> and <set> tags. But mangeable.

So here's where the story becomes a rant.

In the standard docs, there's all these math functions, and they work. There's also logic.

And then there's this fucker
XIF [ * ] XS [ * ]
Which has no documentation and just doesn't work. No idea what the brackets mean. Tried putting in TRUE, tried putting in true math statements (5 XEQ 5), tried putting in recursion tags to trick it, tried everything. It just ignores it.
There is not a single comment, stackOverflow post, or youtube video that even acknowledges the existence of this thing.

So unless I want to convert the entire logic of my program into nested SWITCH statements with the <condition> tag, I'm just fucked.

The icing on the cake is, I go to tech support on Pandorabots to ask for help with this. What do they have except a chatbot to cheerfully tell me that no humans are around to help me right now?

gonna have to build an entire fuckin turing machine in markup tags to calculate whether x = 3

(:

I hate my brain.
Got a compliment, my brain automatically rejected it and judged it.
Then it started to judge the judgement. Then the judge^3.
Then go all the way to the recursion.

For the last few days my brain is making me lose focus on everything because of this.
And the most fucked up thing is, I am paranoid of my own brain, so I really judged my memories and shit. I think I am losing my mind, my uni doesn't have consulting for students either nor I have money.

Any advices from ppl who went to a psychologists will be appreciated. A lot.

I'm learning Rust as a case study for my own programming language. It's funny how many approaches exist to the humble loop.

- In classic procedural languages, a loop's job is to repeat actions, and as such it provides a multitude of tools to control this repetition.

- In all languages with iterators, a for-in loop is a construct that does something with every element of a collection. In languages with both iterators and generator functions, this can even be used to define a sequence in terms of another.

- In Rust, a loop is an expression that obtains its value through repeated execution. It can also be used like a classic loop, of course, but this is the interesting part.

- My little language is a functional language, so "loop" is the Y combinator. To loop means to define the value of an expression in terms of itself. It's the only looping construct, gets special treatment from the type checker and it's also used in recursive type definitions.

does recursion have any practical use outside of being a cute/elegant solution under constraints where stack overflow isn't a concern due to small input size, and leetcode?

im having trouble thinking of anywhere you could justify using recursion in industry outside of leetcoding people

i assume the iterative approach would be preferred in scenarios where scaling matters

Recursion always sucks!

IF I see something infinite and more than three.

and never more than three in real world.

I use recursion.

because who knows, people are crazy.
myself included.