Pattern

Constraint Search with Pruning

4 problems in the roadmap use this pattern.

• Partition to K Equal Sum Subsets Medium

  in Recursion & Backtracking

  Reported at: GoogleAmazonLinkedIn
• N-Queens Hard

  in Recursion & Backtracking

  Reported at: AmazonMetaMicrosoft+4
• N-Queens II Hard

  in Recursion & Backtracking

  Reported at: ByteDance / TikTok
• Sudoku Solver Hard

  in Recursion & Backtracking

  Reported at: AmazonAppleGoogle+8