fork download
copy 
  1. s="!!!??"
  2. matches = s.scan(/(([?!])\2*)/).inject([]) { |acc, (m, _)| acc << m }
  3. puts matches
Success #stdin #stdout 0.01s 5792KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
!!!
??
https://ideone.com/LBr98Y
language:
Ruby (ruby 2.5.5)
created:
6 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!