Coming up with a idea is the hard part. Other people can't really help there. The rest is easy and other people can't really help there either (except for providing feedback) since it's pretty fast.
Your task: given a nonzero positive number i, calculate pi using the Nilakantha series unto i terms.
The Nilakantha series is as follows:
$$\text 3 + \frac{4}{2*3*4} - \frac{4}{4*5*6}+\frac{4}{6*7*8} - ...$$
3 is the first term, 4/2*3*4 is the second, -4/4*5*6 is the third, and so on.
Notice that...
@user JavaScript is middle-aged. It just went out and bought a super expensive car, and thinks it's in the prime of its life. It goes jogging daily, and is an active member of the HOA. It's totally unaware that the kids think it's out-of-touch, and it's even started using the same jokes the kids are using sometimes, but always a few months after they're cool. It had an unusual childhood, and all of its friends from college have ended up in prison.
Java is an old man. He likes to tell long, verbose stories about his youth, about the war. He can make friends with anyone, and is only occasionally casually racist. He's pretty much given up on being up-to-date with technology, and instead enjoys woodworking and writing letters to his senator. He still has a job, at a big company, since he refuses to stay home all day.
Scala is Java's daughter. She looks just like him, and is interested in many of the same hobbies. She's always annoyed that he won't use the cell phone she bought him. She's active in politics, and just got out of college. She wants to do something more exciting than just work at a desk all day, but she knows that's where she'll end up.
C++ proudly hangs a Trump 2024 flag in front of his house. He lives across the street from Java, and keeps an eye on him. They're bitter rivals at work. C++ is also into woodworking, and his hands are covered in scars. He insists on doing all of his house repairs himself, despite not actually being very good at making it consistent and properly functional. He's proud to be C's son, but never visits him at the retirement home.
I like the one about Java but I'd like to propose a different version of this: Scala is Java's daughter. She had a bright future and a full college fund, but then her brother Kotlin was born. Java devoted all its attention to Kotlin, partly because the resemblance was much stronger between those two than with Scala. Scala became more and more estranged from the rest of the family and got involved with the wrong crowd, like Haskell the "cool" drug dealer
Kotlin, on the other hand, gets all the attention and snubs Scala any chance he gets. He knows he's going to inherit all of Java's fortunes when he grows up, while Scala will lose the bit of fame she has and eventually lose what little she inherits from Java
Groovy is the middle child that no one talks about. Java decided to make a clone of himself, but tried to remove his defects using some genetic modification. The result was a monstrosity, so Groovy was sent away to work a desk job in the middle of nowhere where no one would see Java's mistake
Kotlin still hangs out with Groovy sometimes because he has good connections with Gradle, but Kotlin's been trying to cut Groovy out of the deal recently
Jython was the result of another one of Java's horrific experiments where he mixed snake DNA into one of his clones. Java is no longer allowed to conduct medical experiments
Given a sudoku(9 * 9) where . represent empty cell and it contains number from 0-8(inclusive).
Constraint:
All the number in sudoku must appear exactly once in left-top to right-bottom diagonal.
All the number in sudoku must appear exactly once in right-top to left-bottom diagonal.
All the number...
@user Pip is a 30-year-old who keeps trying to hang out with the cool college kids. They usually just ignore him. Every once in a while, someone new meets him and thinks he's fun, until they meet the others and realize that they're way cooler. He has a habit of unironically using slang terms that were popular 10 years ago.
Zsh is an insignificant politician. She dreams of being prime minister but is actually the least important MP in parliament. When she tries to talk to normal people noone ever agrees with her and she goes home having done nothing but bore everyone.
@mousetail Ooh, good question. Well, it's probably simpler than what you're looking for, but I notice that cyclic tag doesn't really have an interpreter. (It isn't exactly a language, but it would be if you gave it a clearly defined syntax.) I'll have to think if there are some other languages.
COBOL is an old army veteran. He used to be quite important, as he's happy to remind you all the time, but nowadays he sits inside reading the newspaper and snoozing.
@user tarpits are those "survive on your own in the wilderness", type guys, with the level of functionality corresponding to the amount of technology they allow themselves to use ("bring a van" vs "eat grass and fight a bear bare handed"). The Waterfall Method is mother nature herself.
@user Clojure is Lisp's son that got married to one of Java's daughters. He likes to think he's cool and all, like his brothers, but no one understands him. Having the Java family as in-laws doesn't help.
Scratch is the elder cousin of Snap! and the elder brother of Scratch Jr. It wants to be appreciated by younger people but it finds all it attracts is working class men (with Scratch Jr. taking all the kids attention)
Python is a cannibal that likes to eat other programming languages for dinner. Somehow, it manages to keep a good public face with "dynamic typing" and "multiple paradigm."
It's demand paging (which is what Neil described), but that's not all:
It's also copy-on-write for zeroed pages, since allocated VMAs all initially point to a single zero-page. There's a fair number of mmap calls even for an empty program because most libcs are pretty bloated, and any write to any of the pages will cause a page fault.
