543. Diameter of Binary Tree
Easy
Given the root
of a binary tree, return the length of the diameter of the tree.
The diameter of a binary tree is the length of the longest path between any two nodes in a tree. This path may or may not pass through the root
.
The length of a path between two nodes is represented by the number of edges between them.
Example 1:
Example 2:
Constraints:
The number of nodes in the tree is in the range
[1, 10^4]
.-100 <= Node.val <= 100
解題
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