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Solution: Symmetric Tree

Explore how to confirm whether a binary tree is symmetric by using a breadth-first search approach. This lesson guides you through checking mirror image properties of left and right subtrees systematically, implementing a queue-based algorithm, and analyzing time and space complexity. By mastering this, you will understand tree symmetry checks and optimized traversal strategies in coding interviews.

Statement

Given the root of a binary tree, check whether it is a symmetric tree. A symmetric tree refers to a tree that is the mirror of itself, i.e., symmetric around its root.

Constraints:

  • The tree contains nodes in the range [1,500][1, 500].
  • 103-10^3 \le
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