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Solution: Delete Nodes And Return Forest

Understand how to delete nodes from a binary tree and form a forest of disjoint trees by applying depth-first search techniques. This lesson helps you implement the algorithm step-by-step, manage tree transformations, and analyze time and space complexity for efficient tree operations.

Statement

Given the root of a binary tree where each node has a unique value, your task is to delete all nodes with values specified in the deleteNodes array. After performing the deletions, the tree will split into a forest—a collection of disjoint trees. Return the roots of the remaining trees in the forest in any order.

Constraints:

  • 00\leq nodes 100\leq100 ...