897. Increasing Order Search Tree LeetCode Solution | Easy Approach

Minimum Cost to Merge Stones

Increasing Order Search Tree Given the root of a binary search tree, rearrange the tree in in-order so that the leftmost node in the tree is now the root of the tree, and every node has no left child and only one right child.

Example 1:

Input: root = [5,3,6,2,4,null,8,1,null,null,null,7,9]
Output: [1,null,2,null,3,null,4,null,5,null,6,null,7,null,8,null,9]

Example 2:

Input: root = [5,1,7]
Output: [1,null,5,null,7]


  • The number of nodes in the given tree will be in the range [1, 100].
  • 0 <= Node.val <= 1000

Increasing Order Search Tree Solutions

Time: O(n)
Space: O(n)


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