Linked Questions

522 votes
985 answers
194k 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 ...
Martin Ender's user avatar
236 votes
369 answers
66k views

Is this number a prime?

Believe it or not, we do not yet have a code golf challenge for a simple primality test. While it may not be the most interesting challenge, particularly for "usual" languages, it can be nontrivial in ...
Dennis's user avatar
  • 210k
196 votes
416 answers
77k 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
  • 23.4k
192 votes
180 answers
20k views

What is the smallest positive base 10 integer that can be printed by a program shorter (in characters) than itself?

I think the question as above is clear, but just in case: Write a full program (not just a function) which prints a positive base 10 integer, optionally followed by a single newline. Qualifying ...
Arandur's user avatar
  • 1,947
176 votes
101 answers
42k views

Programming Languages Through The Years

In this challenge, users will take turns completeing three fairly simple coding tasks in programming languages that are allowed to be progressively older. The first answer must use a programming ...
Calvin's Hobbies's user avatar
79 votes
261 answers
25k views

Is this even or odd?

Note: There is not been a vanilla parity test challenge yet (There is a C/C++ one but that disallows the ability to use languages other than C/C++, and other non-vanilla ones are mostly closed too), ...
Matthew Roh's user avatar
  • 5,347
95 votes
173 answers
16k views

Print a Tabula Recta!

The Tabula Recta (sometimes called a 'Vigenere Table'), was created by Johannes Trithemius, and has been used in several ciphers, including all variants of Bellaso's Vigenere cipher and the Trithemius ...
user avatar
84 votes
193 answers
10k views

Output the sign

Given a number N, output the sign of N: If N is positive, output 1 If N is negative, output -1 If N is 0, output 0 N will be an integer within the representable range of integers in your chosen ...
user avatar
94 votes
163 answers
13k views

Determine whether strings are anagrams

Challenge Given two strings, work out if they both have exactly the same characters in them. Example Input word, wrdo This returns true because they are the ...
Tom Gullen's user avatar
  • 1,249
75 votes
191 answers
9k views

Output your Score!

Challenge: The concept is simple enough: write a full program to output its own code golf score! Output should only be the byte count of your program and a trailing ...
X1M4L's user avatar
  • 1,836
229 votes
65 answers
19k views

No A, just CAPS LOCK

What happens when the CapsLock key on your keyboard doesn't have a notch in it? "This hPPENS." The goal of this program is to consistently emulate keyboard misses where each A press is replaced with ...
Broadwell's user avatar
  • 1,841
70 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
74 votes
164 answers
19k views

The alphabet in programming languages

Our task is to, for each letter of the (English) alphabet, write a program that prints the alphabet, in a language whose name starts with that letter. Input: none Output: ...
Joey Adams's user avatar
  • 10.6k
55 votes
203 answers
14k views

Scream very loudly

Write a script that outputs A to stdout infinitely. There should be no newlines or separators between the characters. Standard loopholes apply. This is code-golf. ...
Tornado547's user avatar
  • 1,143
67 votes
165 answers
11k views

Print all integers

Write a program or function which will provably print all integers exactly once given infinite time and memory. Possible outputs could be: ...
Fatalize's user avatar
  • 38.9k

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