https://www.rik-kisnah.ai/tags/backtracking/Recent content in Backtracking on Rik Kisnah - BlogHugoenTue, 10 Jun 2025 09:00:00 -0700https://www.rik-kisnah.ai/teach/coding/subsets/Tue, 10 Jun 2025 09:00:00 -0700https://www.rik-kisnah.ai/teach/coding/subsets/Every possible group you can make from a set of items, including the empty group. For each item, choose to take it or leave it. That choose-then-undo rhythm is backtracking, and it is behind every ‘all combinations’ question.