Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in Go

Solution: Invert Binary Tree

Explore how to invert a binary tree by performing a post-order depth-first search traversal. Learn to swap left and right subtrees recursively, creating a mirrored tree. This lesson clarifies the approach, step-by-step implementation, and analysis of its time and space efficiency.

We'll cover the following...

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 Number of nodes in the tree ≤100\leq 100
...