Russ Cox AoC 2021 Day 10 – Perl REPL

The entire playlist of Russ doing AoC this year has been great. Using a combination of ivy, perl, awk, sam, and acme. Normally I focus on writing small scripts or programs to complete each day but using a REPL or similar interactive environment to reach the answer is a neat solution I had not thought of.

Telling Perl to REPL is absolutely insane:

perl -e 'while(<>) { print eval, "\n\n" }'