Frequent Questions

47 votes
14 answers
18k 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.
Oliver Ni's user avatar
  • 10.6k
337 votes
182 answers
150k views

Tips for golfing in Python

What general tips do you have for golfing in Python? I'm looking for ideas which can be applied to code-golf problems and which are also at least somewhat specific to Python (e.g. "remove comments" is ...
moinudin's user avatar
  • 12.9k
88 votes
58 answers
18k views

Tips for golfing in Haskell

What general tips do you have for golfing in Haskell? I am looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Haskell. Please post only one ...
Animesh 'the CODER''s user avatar
106 votes
39 answers
28k views

Tips for golfing in Java

Are there any useful shortcuts that can be used in Java? As shown below, import already adds at least 17 characters to a program. ...
user avatar
104 votes
45 answers
13k views

Tips for golfing in <all languages>

The aim of this post is to gather all the golfing tips that can be easily applied to <all languages> rather than a specific one. Only post answers that its ...
ajax333221's user avatar
  • 3,664
524 votes
1k answers
200k 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
248 votes
466 answers
66k views

Golf you a quine for great good!

Using your language of choice, golf a quine. A quine is a non-empty computer program which takes no input and produces a copy of its own source code as its only output. No cheating -- that means ...
Rafe Kettler's user avatar
  • 2,757
168 votes
65 answers
42k views

Tips for golfing in C

What general tips do you have for golfing in C? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to C (e.g. "remove comments" is not an ...
Casey's user avatar
  • 3,629
17 votes
14 answers
3k views

I want 8 bits for every character!

This is the reverse of this challenge. Given an encoded list of codepoints and the characters used to encode it, you need to decompress it to its original string. For example, given the encoded list <...
naffetS's user avatar
  • 13k
175 votes
98 answers
71k views

Tips for golfing in JavaScript

What general tips do you have for golfing in JavaScript? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to JavaScript (e.g. "remove ...
mellamokb's user avatar
  • 6,113
53 votes
51 answers
8k views

Tips for golfing in PowerShell

What general tips do you have for golfing in Windows PowerShell? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to PowerShell (e.g. "...
Joey's user avatar
  • 13.2k
137 votes
29 answers
12k views

Making Future Posts Runnable Online with Stack Snippets [closed]

Stack Snippets were recently added to PPCG! Reminiscent of JSFiddle, Stack Snippets allow HTML, CSS, and JavaScript to be run directly in posts! Here is a very simple Stack Snippet: ...
Calvin's Hobbies's user avatar
74 votes
23 answers
8k views

Tips for golfing in R

I'm looking for tips for golfing in the R statistical language. R is perhaps an unconventional choice for Golf. However, it does certain things very compactly (sequences, randomness, vectors, and ...
Ari B. Friedman's user avatar
76 votes
60 answers
21k views

Tips for code-golfing in C#

What general tips do you have for golfing in C#? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to C# (e.g. "remove comments" is not an ...
jcolebrand's user avatar
  • 1,883
239 votes
382 answers
68k 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
  • 211k

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