We’ve updated our Terms of Service. A new AI Addendum clarifies how Stack Overflow utilizes AI interactions.

Return to Revisions

Runic Enchantments, 19 bytes

qA,r\;>i:l͍'
$ka$L

Try it online!

Outputs with a trailing newline because its cheaper to loop and wait for stack underflow to cause program termination than to figure out if anything's left on the stack to print. As such the required terminator ; goes unexecuted.

Inputs that are not capable of being square are output as tall rectangles, as computation required to coerce a square through trailing spaces aren't necessary due to challenge spec regarding inputs.