654. Maximum Binary Tree
Medium
You are given an integer array nums
with no duplicates. A maximum binary tree can be built recursively from nums
using the following algorithm:
Create a root node whose value is the maximum value in
nums
.Recursively build the left subtree on the subarray prefix to the left of the maximum value.
Recursively build the right subtree on the subarray suffix to the right of the maximum value.
Return the maximum binary tree built from nums
.
Example 1:
Example 2:
Constraints:
1 <= nums.length <= 1000
0 <= nums[i] <= 1000
All integers in
nums
are unique.
解題
Runtime: 14 ms, faster than 97.40%
Memory Usage: 7.1 MB, less than 68.83%
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