Questions tagged [polyglot]
For challenges involving code that runs in multiple programming languages.
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Irradiated Polyglots
Design a function or program that, when run normally, outputs the triangular numbers. However, when any single character is deleted, the program/function should not function in the original ...
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Are you a probabilist or a physicist?
Hermite polynomials refer to two sequences of polynomials:
The "probabilist's Hermite polynomials", given by
$${He}_n(x) = (-1)^n e ^ \frac {x^2} 2 \frac {d^n} {dx^n} e ^ {-\frac {x^2} 2}$$
...
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Polyglot Interpreters
Challenge
Choose any number of languages. Call this set L.
Write a program so that running it in any language in L produces an interpreter for a different language ...
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Make a polyglot generator
A polyglot is a program that runs in several languages.
Your challenge is to:
Choose at least two languages (Different versions count as different languages)
Create a program or function that takes ...
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(Error) quines, hello world, polyglots, oh my!
Introduction
A quine is a program that outputs its own source code. For example, a well-known Python quine is _='_=%r;print(end=_%%_)';print(end=_%_). Running it ...
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Pristine Polyglots
As the title says, you are to create a pristine program in as many languages as possible. A pristine program, taken from here, is:
Let's define a pristine program as a program that does not have any ...
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Build an alphabetised polyglot
As TIO can show, every letter of the Latin alphabet is represented when it comes to languages. For every letter there is at least 1 programming language whose name begins with that letter. Your task ...
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Inspired by HQ9+: 4-Behavior Polyglot
Create a program that can be run in 4 different languages such that:
One language prints "Hello World!"
One language outputs its own source code
One language outputs 99 bottles of beer on ...
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The Return of FizzBuzz
Intro
Beauty lies in the eye of the beholder. Output lies in the choice of the compiler. There are some codes that give different outputs based on what language they are executed in. Take for ...
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Program that compiles into itself
We've had lots of questions about quines, programs where the source code and output are identical. For compiled languages, there are other combinations: we've already had a question about writing a ...
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Polyglot "Hello world" in Fortran and Lisp [duplicate]
Simple challenge: The code must be both valid Lisp and valid Fortran, and must print out "hello world" in both.
Note: I've sunk about 5 hours into this at this point, I'm not even sure it's possible ...
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Polyglot self-interpreter time
Your task is to make a program which interprets the language it is run in, but also works in many languages.
Let's say you make a Brainfuck-Underload self-interpreglot, as it will be called. Run in ...
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Polyglot Iterative Quine
Introduction
A polyglot is a program that is valid in multiple languages at once. An iterative quine is a program that outputs another program that outputs another program that outputs the source of ...
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Restricted-source polyglot string
Your goal is to write a program that prints the string abc in two languages. However, while the full code will print abc in one ...
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Print your char count in words, in many languages
This challenge is inspired by my earlier challenge "Create a program that prints the amount of characters it has, in words".
This challenge's rules are simple: make a program that prints its ...
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Don't get banned from stack exchange! [closed]
I'm sure this is going to spark some controversy, but let's do a practical demonstration.
The objective of this is simple, using the new code of conduct and no input, print out my pronouns ( "he/him"...
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Write a "hello world" program that can be compiled/interpreted as two different languages simultaneously [duplicate]
Rules:
Your program must print "hello world" when executed
Your program must be interpretable or compilable into 2 or more languages
Your program must require no input or arguments
Languages with ...
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An OEIS polyglot
This is an answer-chaining challenge relating to the OEIS.
Oh, the justification for this is because a company needs one program to print out their OEIS sequences real bad and they have every ...
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A poly-moly-holy quine. (Well, it's not, but the title's cool.)
This is an answer chaining puzzle, where each answer must add on to the last.
The \$n\$th submission must output its own source code in the \$n\$th language and the \$n−1\$ languages before it.
A ...
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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, ...
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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 ...
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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 ...
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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 ...
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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"...
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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):
...
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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 ...
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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:
...
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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
...
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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.
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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
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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 ...
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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 ...
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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
...
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'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 ...
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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 ...
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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 ...
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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. ...
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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. ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 main ...
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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 ...
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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 ...
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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 ...
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