Linked Questions

194 votes
413 answers
74k views

1, 2, Fizz, 4, Buzz

Introduction In our recent effort to collect catalogues of shortest solutions for standard programming exercises, here is PPCG's first ever vanilla FizzBuzz challenge. If you wish to see other ...
Beta Decay's user avatar
  • 23.3k
145 votes
333 answers
31k views

Shortest code to produce infinite output

Write the shortest code you can that produces an infinite output. That's all. You code will only be disqualified if it stops producing output at some point. As always in code golf, the shortest code ...
tbodt's user avatar
  • 2,426
120 votes
405 answers
30k views

Print a 10 by 10 grid of asterisks

Background This is a standard textbook example to demonstrate for loops. This is one of the first programs I learnt when I started learning programming ~10 years ago. Task You are to print this exact ...
Leaky Nun's user avatar
  • 49.6k
269 votes
145 answers
37k views

Without using numbers, get the highest salary you can. But don't exaggerate!

As I'm applying for some jobs whose job advert doesn't state the salary, I imagined a particularly evil interviewer that would give the candidate the possibility to decide their own salary ...by "...
Nicola Sap's user avatar
  • 2,711
110 votes
328 answers
22k views

Simple cat program

One of the most common standard tasks (especially when showcasing esoteric programming languages) is to implement a "cat program": read all of STDIN and print it to STDOUT. While this is named after ...
Martin Ender's user avatar
239 votes
115 answers
43k views

Print every character your program doesn't have

Your task is to build a program (using only printable ASCII characters and/or tabs and newlines) that prints out exactly the characters in the printable ASCII space (...
Joe Z.'s user avatar
  • 34.7k
128 votes
201 answers
34k views

Sing Happy Birthday to your favourite programming language

Your favourite programming language has just had a birthday. Be nice and sing it the Happy Birthday song. Of course you should accomplish this by writing a program in that language. The program takes ...
David Frank's user avatar
  • 2,039
92 votes
241 answers
19k views

"DDoouubbllee ssppeeaakk!!"

Super simple challenge today, or is it? I feel like we've heard a fair bit about double speak recently, well let's define it in a codable way... Double speak is when each and every character in a ...
AJFaraday's user avatar
  • 11.8k
393 votes
49 answers
58k views

Covfefify a string

In this challenge, you must take a string matching the regex ^[a-zA-Z]+$ or whatever is reasonable (you don't have to consider uppercase or lowercase letters if you ...
Destructible Lemon's user avatar
66 votes
170 answers
16k views

Print 0 to 100 without 1-9 characters

Print integers 0 to 100 (inclusive) without using characters 123456789 in your code. Separator of numbers can be comma or white space (by default <blank>, <...
user avatar
120 votes
98 answers
17k views

Loading... Forever

Your challenge is to make an infinite loading screen, that looks like this: Or, to be more specific: Take no input. Output Loading..., with a trailing space, but ...
FlipTack's user avatar
  • 14.6k
59 votes
209 answers
8k views

The Mystery String Printer (Cops)

The robbers thread can be found here: The Mystery String Printer (Robbers) Your challenge Write a program, function, or REPL script that prints a string to STDOUT. The robbers will try to create a ...
Daniel M.'s user avatar
  • 3,929
91 votes
119 answers
12k views

N(e(s(t))) a string

To "function nest" a string, you must: Treat the first character as a function, and the following characters as the arguments to that function. For example, if the input string was ...
DJMcMayhem's user avatar
  • 58.9k
105 votes
90 answers
24k views

It took me a lot of time to make this, pls like. (YouTube Comments #1)

Hold up..... this isn't trolling. Background These days on YouTube, comment sections are littered with such patterns: ...
Arjun's user avatar
  • 5,034
65 votes
125 answers
17k views

Duck, duck, goose!

Remember the kids game, 'Duck, Duck, Goose'? No? Me neither. The challenge Print the word 'duck' on individual lines an indeterminate amount of times. Print the word 'goose'. Your program ends. The ...
AJFaraday's user avatar
  • 11.8k

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