When Jon Skeet programs in Forth, it automatically becomes First.
A rigid transformation of a square array is a mapping from square arrays of a certain size to square arrays of the same size, which rearranges the elements of the array such that the distance to each other element remains the same.
If you printed out the matrix on a sheet of paper these are the t...
code-golfdecision-problemarraygrid
(undecided title, will update when I think of one)
Background
In a 2d game that I play, each screen is a 2d grid of tiles with walls and walkable tiles, with the player only able to travel on walkable tiles, and being stopped by walls. When the player walks past...
I am looking for tips to code in this golfing language Seriously, and was wondering what some of the ways for golfing this language is. "Remove comments" is not a tip. Thx in advance!
In accordance with our meta agreement, since one candidate received more votes than the others, we have a new featured language! Throughout February 2022, our Language of the Month will be:
tinylisp
What's a Language of the Month?
See the meta post for nominations. In short, during February, th...
Output a Steiner quadruple system
Background
A Steiner quadruple system $SQS(n)$ is a collection of subsets (or blocks) $Q_1,\dots,Q_k$ of size 4 of a set $S$ of size $n$ such that every subset of size 3 is in exactly one of the $Q_i$. It is easy to show that an $SQS(n)$ can exist only for $n\equ...
