What is the correct result?

[johnb]

(03-19-2024 01:58 PM)KeithB Wrote:  APL n, [A Personal Language, A Packed Language, or rarely A Programming Language]
A language devised by K Iverson, so compacted that the source code can be freely disseminated without revealing the programmer's intentions or jeopardizing proprietary rights.

Obligatory disclosure here: I learned to program in FORTRAN IV in 8th grade (on a 60-bit 1's complement CDC mainframe), and APL was my second computer language, picked up the following summer (at a non-boarding math camp).

This may explain quite a bit about my particular mental abberations.

Be that as it may, about 6-8 months after the end of that APL camp, I spent a half day shadowing some APL programmers at a local IBM facility. Their lunchtime sport was to print out an APL "one-liner" (which wrapped to about 6-8 lines when printed), shove it under the nose of a fellow programmer, and dare him to explain what the program does before the lunchbreak was over...