Questions tagged [polyglot]
For challenges involving code that runs in multiple programming languages.
3
votes
2answers
193 views
Polycops and Robbers (Robbers' Thread)
This is the robbers' thread, the cops' thread is here
A polyglot is a program, that without modification, can run in multiple languages.
Robbers' Challenge
First, find a vulnerable cop's answer, ...
2
votes
5answers
468 views
Polycops and Robbers (Cops' Thread)
This is the cops' thread, the robbers' thread is here
A polyglot is a program, that without modification, can run in multiple languages.
Allowed languages
Any language that was made before the ...
30
votes
16answers
2k views
Overlapping Polyglots
Unlike many C&R challenges, this does not require a separate robbers post; the goal of the robbers is to crack the previous answer and then post a new one as a cop.
As answerers, you will write a ...
14
votes
50answers
2k views
Add a egaugnaL to a polyglot
This is an answer-chaining question, which means that all answers are affected by those before them.
The task
The n-th answer to this question must run in all languages that are present in answers ...
10
votes
5answers
528 views
Quine of orders
Write a program that, when run in different languages, outputs a different byte permutation of the code in each language. The exact source code is counted as one permutation.
Here "different language"...
20
votes
29answers
5k views
This code errors on *this* and *that*, is it really written in them?
Inspired by I'm not the language you're looking for!
Challenge
Choose two different programming languages, and write a program that prints the following line to stdout (or equivalent):
...
15
votes
3answers
366 views
The Pyramid of Languages
Write a code that runs or compiles in as many programming languages as possible and prints a newline separated list of names of previous and current programming languages.
Every used language must ...
33
votes
21answers
12k views
Wait, what language is this?
Recently I had the pleasure of writing a Haskell program that could detect if the NegativeLiterals extension was engaged. I came up with the following:
...
25
votes
10answers
1k views
404 - Unique 404 page not found
Inspired by a polyglot on the Stack Overflow 404 page:
Goal
Your goal is simple, to create a polyglot that outputs the number 404, and then terminate, in as many languages as possible.
Restrictions
...
70
votes
13answers
8k views
Hello World in Multiple Languages
Task
Create a program or a function that is valid in multiple programming languages, and when compiled/interpreted as a different language outputs "Hello, World!" in a different natural language.
...
8
votes
5answers
607 views
Life and Death of Trees
The Challenge
Write a program that takes an integer N as input, and outputs the stage of life or death that a tree is currently in. N will always be between 0 and 10.
The Stages of Life and Death
...
-4
votes
2answers
211 views
Polyglot the English Alphabet! [closed]
In this polyglot challenge, you will work together to figure out how to output all the 26 letters of the English alphabet!
How does this work?
For each answer, you must pick a new language (or a new ...
43
votes
42answers
8k views
Determine your language's version
Your challenge is to write a polyglot that works in different versions of your language. When run, it will always output the language version.
Rules
Your program should work in at least two versions ...
23
votes
6answers
1k views
Polyglot the (non constant) OEIS!
Disclaimer: This is heavily inspired by "Polyglot the OEIS!" but fixes the problem that lead to closure (see the output section) and was re-posted as to not invalidate answers.
Introduction
We all ...
27
votes
56answers
4k views
'abc' and 'cba'
Your task is simple, write a single code snippet that when executed in one language outputs only the string 'abc' and when executed in another language outputs ...
42
votes
12answers
3k views
Polyglot the OEIS! [duplicate]
Note: This challenge has been moved to Polyglot the (non constant) OEIS! to avoid closure.
Introduction
We all know and love the on-line encyclopedia of integer sequences (OEIS). So what if we made ...
23
votes
7answers
1k views
Fake divisor sum polyglots
The task
In this challenge, your task is to write a program in a programming language L that takes a positive integer n, and outputs the sum of the proper divisors of n (sequence A001065 on OEIS).
It ...
11
votes
1answer
284 views
Cyclic Polyglot Challenge (Cops)
Cyclic Polyglot Challenge
This is the cops thread. You can find the robbers thread here.
Cyclic Polyglot
A N-element cyclic polyglot is a complete program that can be run in N different languages. ...
7
votes
1answer
180 views
Cyclic Polyglot Challenge (Robbers)
Cyclic Polyglot Challenge
This is the robbers thread. You can find the cops thread here.
Cyclic Polyglot
A N-element cyclic polyglot is a complete program that can be run in N different languages. ...
56
votes
18answers
6k views
Count like Chuck Norris
As is well known,
Chuck Norris counted to infinity. Twice
Besides,
Chuck Norris can count to infinity backwards.
Also, although perhaps less known, Chuck Norris can speak a little Spanish in ...
11
votes
2answers
337 views
Quine/Error Quine Polyglot
Your task is simple: Write a program that can be run in two languages. It should be a normal quine (prints its own source code) in language 1, and should be an error quine (generates an error message ...
40
votes
3answers
2k views
Klein Topololyglots
Klein is a 2D language I have designed that can be embedded on 12 different topological surfaces. A Klein program can be run on different surfaces by changing the command line arguments.
The ...
19
votes
6answers
1k views
Anaglot Polygrams
Task
Write some code that can be rearranged into n different programs in n different languages each outputting a distinct number from 1 to n.
No two languages should be the same however different ...
8
votes
6answers
690 views
Backwards and forwards polyglot quine!
You must make a polyglot that outputs its source code in one language and its source code backward in another. Unlike the normal rules, you are allowed to read the current file or use a builtin to get ...
14
votes
12answers
3k views
Plus or minus polyglots!
Your submission must take a list of numbers (in whatever list format your language supports, or using multiple function / command-line parameters) or a string of numbers separated by any character ...
19
votes
6answers
2k views
Contradictory Polyglots
Well, everyone loves Polyglots. You will be given two integers, in any standard form of input (no hardcoding). Your task is to write a polyglot which finds the minimum value in a language and the ...
26
votes
9answers
2k views
GCD / LCM Polyglots!
Your challenge is to make a program or function that outputs the GCD of its inputs in one language and the LCM of its inputs in another. Builtins for GCD or LCM (I'm looking at you, Mathematica) are ...
6
votes
3answers
502 views
The Big Bang Polyglot [duplicate]
Everyone loves The Big Bang Theory, right? And everyone loves polyglots, right? So let's combine them!
Task
Your task in each language is quite basic. You must output the name of the one of the 5 ...
69
votes
10answers
6k views
Rock, Polyglot, Scissors
Write a program that is a polyglot in three languages that plays rock–paper–scissors.
The input for any version of the program is always one of the strings rock or ...
48
votes
29answers
6k views
Calculate a square and a square root!
You must make a polyglot that outputs the square of the input in one language and the square root of the input in another. The shortest answer in bytes wins!
You must have a precision of at least 3 ...
4
votes
1answer
312 views
Labyrinth Polyglot [closed]
Create a program that can create a randomly arranged maze (The path of the maze changes each time) with exactly 1 exit and one enterance and a minimum size of 8x4 and max size of 32x32, with the exact ...
23
votes
7answers
693 views
Print Polyglot Pieces
Typically, polyglots are constructed in such a manner that each language can ignore parts of the code that are present for other languages, by wrapping them in string literals, using comment syntax, ...
226
votes
233answers
74k views
Add a language to a polyglot
This is an answer-chaining challenge in which each answer builds on the previous answer. I recommend sorting the thread by "oldest" in order to be sure about the order in which the posts are made.
...
19
votes
1answer
492 views
Make a regex polyglot
Write a regex that works in at least 2 regex flavors (or versions), and match a different string in each flavor (or version) it is running in.
The strings to be matched in this challenge are the ...
12
votes
9answers
732 views
Multi-lingual Challenge
After all the fun we've had with polyglot challenges in the (recent) past, how about a challenge where the output can be in two languages?
Your answer needs to accept boolean input ...
48
votes
16answers
3k views
Tips for creating polyglots
A polyglot is a program that can be run in 2 or more different programming languages.
What general tips do you have for making polyglots, or choosing languages that are easy to write polyglots for a ...
8
votes
1answer
373 views
Comment-free polyglot with different, nontrivial, behaviour per language
This challenge is inspired by this other challenge, which you may want to read first for some context. However, a competitive answer is likely to look very different, so after reading some posts on ...
40
votes
15answers
3k views
What will you bring for Thanksgiving?
Thanksgiving in the United States is coming up on November 24th. Many people will have a large dinner with their families, traditionally including turkey and many side dishes. This typically means the ...
32
votes
7answers
1k views
Three polyglots, two period-two quines, and one code-golf challenge
Produce a program A such that running it in language A produces Program B, and running program A in language B produces program C.
Program B, when run in language B produces Program A, and running ...
22
votes
24answers
2k views
Polyglot Anagrams Robbers' Thread
This is the robbers' thread of this challenge
The cops will choose an OEIS sequence and write two full programs in two different languages that produces that nth item in the sequence when given an n ...
44
votes
32answers
3k views
Polyglot Anagrams Cops' Thread
This challenge has two threads. This is the cops' thread. The robbers' thread is located here.
Your challenge is to choose an OEIS sequence and write two full programs in two different languages ...
18
votes
9answers
726 views
The meta-polyglot quine
In my time on PPCG, I've noticed that quine problems and polyglot problems are quite popular. Also, meta-solutions to problems, that is, scripts which generate a program which is the solution to a ...
15
votes
15answers
2k views
Palindrome polyglot
Your task is to write a program that runs in two different languages, and does the following:
In one language, it palindromizes a given string.
Take the string. ...
13
votes
5answers
1k views
Add comments to a Python script and make it a bilingual Python/C++ “program”
Given the following Python 3 script:
def greet():
print("Hello, world!")
greet()
Prepend some lines to this text file so that it can be both executed as a ...
157
votes
122answers
30k views
Trick or Treat polyglot
Since Halloween is coming up I thought I might start a fun little code golf challenge!
The challenge is quite simple. You have to write a program that outputs either ...
90
votes
18answers
15k views
When was this language released?
Your challenge is simple. You need to write a program that prints to either STDOUT or a file the year the language it is written in was released. Because this is such a simple task, the twist is that ...
25
votes
2answers
2k views
Write a Palindrome-Polyglot-Quine
Write a "palipolyquine": a program that is a quine, a polyglot, and a palindrome.
Rules:
The number of polyglot languages is more preferable than code size.
The shortest answer (in bytes) wins, in ...
10
votes
4answers
452 views
-1
votes
1answer
442 views
“I know that language - that's Java. No? It's Perl?” [duplicate]
Introduction
A known fact is that Jon Skeet can code Perl and make it look like Java. In this challenge you will try to do something similar.
Challenge
Write a piece of code of any length that can ...
2
votes
0answers
173 views
Windows batch polyglot/hybrids challenge with any language possible [closed]
/* I hope such question is suitable for here*/
As the batch scripts are pretty limited, hybrid files that embed a code from another language into a batch file are used a lot lately.
Though usually ...
