Checking Symmetry in Binary Trees: Recursive and Iterative Approaches
LeetCode Problem Link
Problem Description:
Given the root of a binary tree, check whether it is symmetric around its center. A binary tree is symmetric if the left subtree is a mirror reflection of the right subtree.
Example 1:
root = [1,2,2,3,4,4,3]
Output: true
Example 2:
root = [1,2,2,null,3,null,3]
Output: false
Approach Analysis
To determi ...
Posted on Tue, 27 Oct 2026 16:44:12 +0000 by Assorro