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Grokking the Coding Interview Patterns in C#

Solution: Convert Sorted Array to Binary Search Tree

Explore how to convert a sorted array into a height-balanced binary search tree by selecting middle elements recursively. Learn to implement this with depth-first search while maintaining minimal height differences for efficient problem-solving in coding interviews.

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Statement

Given an array of integers, nums, sorted in ascending order, your task is to construct a height-balanced binary search tree (BST) from this array.

In a height-balanced BST, the difference of heights of the left subtree and right subtree of any node is not more than 1.

Note: There can be multiple valid BSTs for a given input.

Constraints:

  • 1≤1 \leq nums.length ≤103\leq 10^3
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