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Solution: Find Nodes at k Distance from the Root

Explore how to find nodes at distance k from the root in a binary tree using depth first search. Understand the recursive approach and the time and space complexities involved in this solution. This lesson helps you implement efficient tree traversal methods useful in coding interviews.

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Statement

Given the root node of a binary tree and an integer value k, find all the nodes at a distance of k from the root node.

Constraints:

Let n be the number of nodes in a binary tree.

  • 11 \leq n 500\leq 500
  • 00 \leq
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