Linked Questions

518 votes
974 answers
191k views

"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 ...
552 votes
241 answers
135k views

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 ...
12 votes
7 answers
2k views

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 ...
103 votes
298 answers
18k views

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 ...
48 votes
14 answers
16k views

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
7k views

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 ...
20 votes
42 answers
5k views

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), ...
110 votes
116 answers
20k views

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? ...
-13 votes
5 answers
360 views

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
871 views

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
2k views

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
3k views

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
706 views

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
1k views

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
907 views

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 ...

15 30 50 per page