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Data Structures for Coding Interviews in C++

Solution: Find Nodes at k Distance from the Root

Explore how to find all nodes at a distance k from the root of a binary tree using depth first search. Understand the recursive approach to traverse the tree and collect nodes at the specified distance. Learn the time and space complexity of this solution to solidify your grasp of tree traversal techniques in C++.

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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.

  • 1≤1 \leq n ≤500\leq 500
  • 0≤0 \leq
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