Linked Questions

522 votes
985 answers

"Hello, World!"

So... uh... this is a bit embarrassing. But we don't have a plain "Hello, World!" challenge yet (despite having 35 variants tagged with hello-world, and counting). While this is not the most ...
551 votes
241 answers

Showcase of Languages

Notes This thread is open and unlocked only because the community decided to make an exception. Please do not use this question as evidence that you can ask similar questions here. Please do not ...
103 votes
300 answers

Create output twice the length of the code

The Challenge Write a complete program that writes twice as many bytes to standard output as the length of the program. Rules The program must write ASCII characters to the standard output. The ...
13 votes
7 answers

Auto-golf an esolang

The lack of a social life drove a poor nerd into inventing another superfluous esolang called !+~%. For no good reason it initializes the accumulator with ...
48 votes
14 answers

Tips for golfing in 05AB1E

Do you have any tips for code-golfing in 05AB1E, a golfing language created by Adnan? Your tips should be at least somewhat specific to 05AB1E. Please post one tip per answer.
48 votes
17 answers

Determine whether a number is 2017-friable without primes in your source code

Out of all the years I've been making this challenge, 2017 is the first year that's been a prime number. So the question will be about prime numbers and their properties. Your task is to produce a ...
19 votes
42 answers

Calculate golden ratio

Write the shortest code, in number of bytes, to display, return, or evaluate to the golden ratio (that is, the positive root of the quadratic equation: \$x^2-x-1=0\$, approximately 1.618033988749895), ...
112 votes
116 answers

Code Golf Christmas Edition: How to print out a Christmas tree of height N

Given a number N, how can I print out a Christmas tree of height N using the least number of code characters? ...
-12 votes
5 answers

12 with no 1234567890, but polyglot

This is my 12th question, so I thought of this idea. Goal: Output 12, with any preceding or trailing whitespace permitted In as many languages as possible (where different versions or flags count as ...
22 votes
7 answers

Happy new year string builder

This question is inspired by this awesome answer. The challenge is to write a program or function which takes in a positive integer, and outputs "Happy new year to you" or a slight variation ...
27 votes
14 answers

number of answers and comments

Write a software that prints on stdout the number of answers and the number of comments(visible and collapsed of question and answers) of this question/page. Your script must run with this page ...
31 votes
4 answers

Eternal 2014 — PCG.SE New Year’s Puzzle 2015

So, now that it's 2015, and a bunch of answers from last year's puzzle are now starting to produce invalid output, it's time for a question involving the number 2015. Except... why? Wouldn't you like ...
-10 votes
16 answers

Count up from 0 to 2017 without numbers in your source

This question was profoundly inspired by Joe Z's question. But, with a twist... So, now that it's almost 2017, it's time for a code question involving the number 2017. Your task is to make a program ...
38 votes
3 answers

Build a golfing language with me

A lot of PPCG users helped with the creation of this challenge, both in chat and the Sandbox, specifically Martin Ender, AdmBorkBork, Emigna and user202729 Our community has found it necessary to ...
11 votes
4 answers

Leaderboard golf

Golf the leaderboard of this question (id=111735). Your program should issue one HTTP or HTTPS request to StackExchange API, parse it and present to user in form similar to a typical Leaderboard ...

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