A reversible language is a programming language where no operation is capable of destroying information. That means that with the output and a program you can always determine the input provided.
This has some interesting implications for IO. For example in Unbalanced the following program "ad...
Toggle the box ascii-art code-golf
Given a string that is potentially boxed in, toggle the box. This becomes clearer in the test cases and explanation.
Input / Output
Input Format
The input will be either a single string separated by CR, LF, or CRLF, or a list of strings. The input format is ...
Where did the rest of the comments on this question go? I'd assume that a moderator deleted them for being off-topic/too chatty, but shouldn't they have been moved to chat then, or at least been given a notice? And even if they were deleted, that makes the last comment out-of-context and obselete.
@WheatWizard According to the badge page it's 20, 80 and 200 answers for bronze, silver and gold badges, needing a total score of 100, 400 and 1000 respectively.
So you need an average score of 5 if you have the minimum required number of answers. I don't know if having more answers than the minimum means you are judged on the total score or just the best 20, 80 or 200 answers
My question is specifically for badges in a particular tag. I've heard that the rules have been changed.
How and when can one get bronze, silver and gold badges for a specific tag, say c++?
What are the new rules governing these badges?
@WheatWizard Thanks - that also answers my other question: It's the total score so a bronze badge could be from 20 answers with score averaging 5, or 100 answers with score averaging 1
Poking around the people's profiles to see how the new activity page looks I keep seeing things like this:
It looks strange to have a 25/5 progress on a badge, but the dialog explains that what this user is missing is a positive record of asking. The formula is:
(total questions - negative qu...
What's my ID? code-golf stack-exchange-api
Challenge
Given the name of a PPCG member, output their PPCG ID number. If the user does not exist, you may report an error or return 0.
Test Cases
"musicman523" -> 69054
"Dennis" -> 12012
"xnor" -> 20260
"Leaky Nun" -> 48934
"fəˈnɛtɪk" -> 64505
"Jö...
Computers will never taste a refreshing cookie.
code-golfkolmogorov-complexitystring
Inspired by github.com/JackToaster/Reassuring-Parable-Generator, in turn inspired by xkcd.com/1263. The possible words are derived from the reassuring.cfg of that repository.
Having a look at the reassuring....
Chalenge Idea: Given a String, return its expansion. Every character multiplied the number of times it already appeared. Like abcdaefa becomes abcdaaefaaa.
The nth time a character appears, it gets replaced by n copies of itself.
Why those who has suffered make others to suffer more later?
Which psychological mechanism behind it, and how strong and reliable is the one?
And - does not it mean that we're all (I mean our civilization) fated to collapse, as the total volume of evil only increases as the time passes?
The input is a word of lowercase letters not separated by whitespace. A newline at the end is optional.
The same word must be output in a modified version: For each character, double it the second time it appears in the original word, triple it the third time etc.
Example input:
bonobo
Examp...
In reference to Let's allow newer languages/versions for older challenges, does this mean it's now kosher to golf my old submissions using more-recent language features? That's the logical conclusion, but it still feels weird, so I'm asking for confirmation.
@V.Courtois Ì think I understood what you were saying. Were you referring to this comment: "KISS. This is far more complicated than common sense would require. Deliberately overcomplicating things to make it "more difficult" is a guaranteed method to make a bad question.", by Peter Taylor?
@V.Courtois I like complex challenges, but there's a difference between complex and (over)complicated. Complex is deep and interesting, complicated is "Oh man, sixteen weird corner cases I have to handle??" (I haven't looked at your sandbox post yet, so I don't have a judgment on which category it falls into.)
Why those who has suffered make others to suffer more later?
Which psychological mechanism behind it, and how strong and reliable is the one?
And - does not it mean that we're all (I mean our civilization) fated to collapse, as the total volume of evil only increases as the time passes?
@Mr.Xcoder cc: @Phoenix This is a shame, IMO. If a challenge is good-complex, it deserves attention, and any answers that it does get deserve a lot of upvotes (provided they come with some form of explanation).
@DLosc Yes, complex challenges IMO should be the most appreciated ones (and their answers), but overcomplicated ones should be ignored and downvoted to oblivion, if you ask me.
Compare the densities of my numbers
You will be given two positive integers N and M, your task is to compare their densities.
How to determine how dense a number is (e.g: N=267)?
Split it into separate digits: 267 -> 2, 6, 7
Count them: 2, 6, 7 -> 3
Sum them: 2 + 6 + 7 = 15
Divide the sum by ...
I'm sorry I'm bothering you again with this, but I really wanna do something with that challenge >_< I don't want to change the complexity of the challenge, but I do want people to give it a try. Will a sentence at the end like Please do not be discouraged the parsing is hard in your language, your solution might be very interesting algorithmically, not obviously in terms of golfing. help people give it a try ?
"The chances of getting a lennyface is proportional to the sum of all the numbers on the lines "above" it (see the example below), with a minimum of 1."
what does that mean? probabilities are between 0 and 1
How we can compare Waterfall VS Incremental VS Spiral VS ROD Software Development Model ?
in following categories
Planning in early stage
Handle Large-Project
Detailed Documentation
Software House size
Cost
Time-Frame
Framework Type
Requirement Specifications
Working software Availability
Ob...
"A list of lennyfaces and numbers (positive AND negative integers)." Is it actually a list or is it a sequence of lines separated by new line characters?
(I still don't understand what probability you want but I will come back to that)
but the challenge has two parts as far as I can tell. a) Create a probability mass function from an input by parsing b) sample from the probability mass function
some people will complain that it is really two different challenges. Some people on ppcg like a question to be about only one thing. So they will say that a) and b) should be different challenges
I personally don't care :)
@V.Courtois where in the question do use that the list wraps around?
oh I see.. that's in your definition of what is between two faces?
> Maltheism (from "mal" meaning bad, or illness, and theism, from... well, theism) is the idea that God is just out to get us and that he or she or it is malicious, like a kid who keeps removing the pool ladders in The Sims
A reversible language is a programming language where no operation is capable of destroying information. That means that with the output and a program you can always determine the input provided.
This has some interesting implications for IO. For example in Unbalanced the following program "ad...
Toggle the box ascii-art code-golf
Given a string that is potentially boxed in, toggle the box. This becomes clearer in the test cases and explanation.
Input / Output
Input Format
The input will be either a single string separated by CR, LF, or CRLF, or a list of strings. The input format is ...
My question is specifically for badges in a particular tag. I've heard that the rules have been changed.
How and when can one get bronze, silver and gold badges for a specific tag, say c++?
What are the new rules governing these badges?
Poking around the people's profiles to see how the new activity page looks I keep seeing things like this:
It looks strange to have a 25/5 progress on a badge, but the dialog explains that what this user is missing is a positive record of asking. The formula is:
(total questions - negative qu...
What's my ID? code-golf stack-exchange-api
Challenge
Given the name of a PPCG member, output their PPCG ID number. If the user does not exist, you may report an error or return 0.
Test Cases
"musicman523" -> 69054
"Dennis" -> 12012
"xnor" -> 20260
"Leaky Nun" -> 48934
"fəˈnɛtɪk" -> 64505
"Jö...
Computers will never taste a refreshing cookie.
code-golfkolmogorov-complexitystring
Inspired by github.com/JackToaster/Reassuring-Parable-Generator, in turn inspired by xkcd.com/1263. The possible words are derived from the reassuring.cfg of that repository.
Having a look at the reassuring....
Why those who has suffered make others to suffer more later?
Which psychological mechanism behind it, and how strong and reliable is the one?
And - does not it mean that we're all (I mean our civilization) fated to collapse, as the total volume of evil only increases as the time passes?
The input is a word of lowercase letters not separated by whitespace. A newline at the end is optional.
The same word must be output in a modified version: For each character, double it the second time it appears in the original word, triple it the third time etc.
Example input:
bonobo
Examp...
Compare the densities of my numbers
You will be given two positive integers N and M, your task is to compare their densities.
How to determine how dense a number is (e.g: N=267)?
Split it into separate digits: 267 -> 2, 6, 7
Count them: 2, 6, 7 -> 3
Sum them: 2 + 6 + 7 = 15
Divide the sum by ...
How we can compare Waterfall VS Incremental VS Spiral VS ROD Software Development Model ?
in following categories
Planning in early stage
Handle Large-Project
Detailed Documentation
Software House size
Cost
Time-Frame
Framework Type
Requirement Specifications
Working software Availability
Ob...
