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Backtracking with Skip Duplicates
1 problems • Practice on LeetCode to earn credits
About This Pattern
Master the Backtracking with Skip Duplicates pattern by practicing these problems organized by difficulty.Focus on the Key Signals - these are the indicators that tell you when to use this pattern.
Medium (1)
Combination Sum II
Find all unique combinations that sum to target (each number used once).
Key Signals:
Sort arraySkip duplicates at same levelUse each once