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Return the root node of a binary **search** tree that matches the given `preorder`

traversal.

*(Recall that a binary search tree is a binary tree where for every node, any descendant of node.left has a value
< node.val, and any descendant of node.right
has a value > node.val. Also recall that a preorder
traversal displays the value of the node first, then traverses node.left,
then traverses node.right.)*

**Example 1:**

Input:[8,5,1,7,10,12]Output:[8,5,10,1,7,null,12]

**Note:**

`1 <= preorder.length <= 100`

- The values of
`preorder`

are distinct.

All contents and pictures on this website come from the Internet and are updated regularly every week. They are for personal study and research only, and should not be used for commercial purposes. Thank you for your cooperation.