Pattern

Inorder = Sorted

3 problems in the roadmap use this pattern.

• Minimum Absolute Difference in BST Easy

  in Binary Search Trees

  Reported at: Google
• Kth Smallest Element in a BST Medium

  in Binary Search Trees

  Reported at: AmazonMetaMicrosoft+2
• Recover Binary Search Tree Medium

  in Binary Search Trees

  Reported at: AmazonMicrosoftApple+3