All Questions

Write a function solution that returns an arbitrary integer which is greater than N, not greater than 109, and that ends with 0. You can assume that N is between 1 and 999,999,999. For example, ...

The following find_min function should return the smallest element from a given array, but it contains a bug. ...

Given six digits, find the earliest valid time that can be displayed on a digital clock (in 24hour format) using those digits. For example, given digits 1,8, 3, 2, 6, 4 the earliest valid time is "...

On my code golf challenge, there are two tie 24 Bytes answers. The first one (Excel) is great because of the creativity put into it and the second one (MATL) is just skill I think and each one should ...

Following Catija's comment on the site name meta question, what subtitle would work best for our site name? The current highest voted answer on that meta question suggests the site name be Code Golf, ...

Since bash scripts (or any other Linux shell scripts) are accepted as a programming language, I wonder what (Linux) programs are accepted as callable from the command line. It seems that it is ...

For code-golf questions, TIO has been a superb resource. However, for fastest-code challenges there is no equivalent tool available. I believe we could explore working with one or more 3rd parties ...

As we're designing the site, we are considering the name and how the logo/wordmark of the site will look (be excited, that means we're actually in-progress!!!). In our discussions internally, there ...

According to Can Halting be considered output? and maybe some other links, programs should halt. However in some cases making program halt is easier(save the infinite loop in code-golf, etc.) but ...

You may have seen my previous post, in which I introduced a new leaderboard widget over the old system. Well, turns out there were a few major bugs with the program. I've gone through and fixed all of ...

Updates: Update 1.1: Released on April 26th, 2019 If you are just here to get the code for the widget, you can skip down to the bottom of this post. Hello! Over the past week, I have been working ...

Right now, there are two challenges, Newer challenge: Check if a string is entirely made of the same substring by ouflak Older challenge: String.prototype....

How would we score changing the colors of graphs in Desmos in [graphical-output] challenges with color-sensitive output? Currently, selecting the color in the menu costs no bytes as no characters are ...

I don't like golf languages, and I vote on solutions using them only if the solution has some extraordinary feature (like abusing a bug in the interpreter). How can I encourage people to vote this ...

I posted a challenge that requires programs to generate a random number in a range, and one answer used the rgeom function from R. This function uses a geometric ...

The long wait is almost over! You have been eminently patient while we've gotten other site designs finished and then completely redesigned the layout of the network. Now that all of that heavy ...

My challenge Solve Subset-Sum in polynomial time (...if P = NP) was closed as a duplicate of Golf the Subset-Sum Problem. But the restricted-complexity aspect of my challenge makes it very different. ...

I couldn't find anything related to this on meta, so here goes: I've noticed that we've decided that competitions should be within each language for a code-golf competition to avoid golfing languages ...

In certain languages (i.e. C), writes to streams like stdout can be buffered by default - what this means is that when one calls functions like ...

I see the bottom of vote list good and some good questions removed cuz of low votes. Is there way to see the removed or I have to go through all possible question id?

Here is an answer that I made recently: https://codegolf.stackexchange.com/a/181416/70328 A commenter suggested that I could remove convert from my code, and use <...

The phrase "Voidhawk's well-explained answer was the first one here in APL" appears in 3 featured questions on PPCG with an active bounty. It seems out of place and I'm not sure what it means. Does ...

Some challenges require, for instance, lists as input. A list has a property being its size. Several languages have builtins to get properties such as the size for a list (all golfing language, ...

As per this question's answers, Scratch 2.0 is no longer considered a "free" language. As per this question's accepted answer, non-free languages are allowed if marked as non-competing. Scratch 2.0 ...

Recently, I posted a code-golf question about number sequences. However, as I was looking through the question later, I thought to myself, "Wouldn't this be good as a fastest-algorithm question?" It's ...

Note this isn't about command line flags, which already have a consensus here. There was a recent PHP answer involving multiple PHP files. Normally, programs with multiple files are either using one ...

An answer I deleted immediately after posting has been down-voted. Is this possible, or did the down-vote occur in the split-second before I deleted it?

This answer gives the reciprocal of the required output, rather than the required output itself. In a simpler challenge this might cut out a significant part of the work, but for this particular ...

Looking at the various winning criteria tags in The Tag Categorization Project, a lot of them should have links to e.g. standard loopholes and I/O standards, but don't. This probably should be fixed.

I mostly ask this for the benefit of new users (e.g. me, ish), who might not know where all the important meta things are, especially since they're not linked every time they apply. I've done some ...

Consider the following the challenge: Write a program that accomplishes X task while maximizing the number of distinct characters in your source code. Removing any set of characters from the ...

Assuming the question would be considered a good question by the community, what is the community stance on creating a question with the sole purpose of eventually supplying a golfed solution? To ...

Final phase You have chosen the categories and the nominees for PPCG's annual “Best of”. Now it is time to pick the winners! Each of the fourteen categories is represented by an answer to this ...

Say I'm designing a new language for golf or some other esoteric purpose, and I'd like feedback on some design concepts. I feel posting this on SO, Programmers, CS, or pretty much any other site on SE ...

A Multipurpose Quine This challenge was closed for the reason that it was unclear what the challenge was asking. The main reason was that the challenge required all outputted quines to not be ...

windows-system was just created for a question put on hold as unclear, and I see no reason to have OS-specific tags. Indeed there are none for any other OSs.

The consistent attitude with regard to the golf language situation is that for every challenge, each language is a category, and subsequently there is a 'winner' for each language. This is also a very ...

How does this Programming Puzzles & Code Golf work? Just curious because I don't really know what this is and I want to fined out...

Last year we voted for the best posts of 2017 and rewarded them with bounties and challenges. I think it's a great way to reward and draw attention to some of the best content the community has ...

2019 is here! And with the new year, as usual, comes a new iteration of Community Promotion Ads! Let’s refresh these for the coming year :) What are Community Promotion Ads? Community Promotion Ads ...

What? Have a question similar to Home on the Range of Lists. Why cannot this user ask the question? Does that mean that even if the question is posted at Sandbox and well-received that the question ...

I was recently (in fact just right now) browsing the review queue when I saw an off-topic question. I tried to downvote, but then I got a message that the question was deleted and I couldn't vote on ...

It's New Year's Day in Stack Exchange land... A distinguishing characteristic of these sites is how they are moderated: We designed the Stack Exchange network engine to be mostly self-regulating, ...

I was scrolling through the posts tagged with "Game" and noticed that it involved quite a few code golf competitions. Just for the sake of clarity and ease while searching, I believe that the ...

If someone answers a code-golf challenge in, for example, JavaScript, and as an additional challenge restricts to only code that is approved by http://www.jslint.com/ that answer is valid if an ...

The Library of Babel is a huge library with many books. For example, the book titled ",fkwpival.vbfz" defines code golf on page 29 code golf is a type of recreational computer programming ...

Easiest WordSearch I've asked a crossword related question thats been on my mind for quite a while. I've made various edits from suggestions in the comments. I don't think I can adjust the question ...

Some popular challenges have many many answers and often a language is used more than once, so : Is there a way to sort answers so that they appear in the order according to the name of a language OR ...

Many challenges, mainly restricted-source, are impossible in some languages. Find an Illegal String is a good example—many languages without syntax errors, such as brainfuck (deleted answer), ...

The question is in the title. I'm interested in submissions that terminate with probability 1 but have unbounded worst case running times. This is related to the question Do programs have to ...