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You are given an integer array nums
with no duplicates. A maximum binary tree can be built recursively from nums
using the following algorithm:
nums
.Return the maximum binary tree built from nums
.
Example 1:
Input: nums = [3,2,1,6,0,5] Output: [6,3,5,null,2,0,null,null,1] Explanation: The recursive calls are as follow: - The largest value in [3,2,1,6,0,5] is 6. Left prefix is [3,2,1] and right suffix is [0,5]. - The largest value in [3,2,1] is 3. Left prefix is [] and right suffix is [2,1]. - Empty array, so no child. - The largest value in [2,1] is 2. Left prefix is [] and right suffix is [1]. - Empty array, so no child. - Only one element, so child is a node with value 1. - The largest value in [0,5] is 5. Left prefix is [0] and right suffix is []. - Only one element, so child is a node with value 0. - Empty array, so no child.
Example 2:
Input: nums = [3,2,1] Output: [3,null,2,null,1]
Constraints:
1 <= nums.length <= 1000
0 <= nums[i] <= 1000
nums
are unique.
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