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Invert Binary Tree

Explore how to transform a binary tree into its mirror image by swapping every node’s left and right children. Understand problem constraints and implement a depth-first search solution to invert the tree efficiently.

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Statement

Given the root node of a binary tree, transform the tree by swapping each node’s left and right subtrees, thus creating a mirror image of the original tree. Return the root of the transformed tree.

Constraints:

  • 0≤0\leq
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