You've learned the core backtracking patterns. Subsets taught you binary include/exclude decisions. Permutations showed tracking visited elements. Combination Sum handled reusing elements. Generate Parentheses introduced constraint-based pruning. Word Search applied backtracking to a -D grid. When you see "generate all," "find all combinations," or "explore all paths," think backtracking. Make a choice, recurse, undo. Prune when constraints are violated.
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$ curl repovive.com/roadmaps/maang-interview-prep/backtracking/section-recap
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