Programming & Software Q&A | CollectiveSolver - Recent questions tagged ruby-substring https://collectivesolver.com/tag/ruby-substring Powered by Question2Answer How to find the longest substring without repeating characters in Ruby https://collectivesolver.com/100600/how-to-find-the-longest-substring-without-repeating-characters-in-ruby https://collectivesolver.com/100600/how-to-find-the-longest-substring-without-repeating-characters-in-ruby Tue, 11 Aug 2026 14:36:37 +0000