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DIY: All Nodes Distance K in Binary Tree

Explore how to find all nodes at a specific distance K from a target node in a binary tree. Learn to implement the distanceK function to return node values K steps away, enhancing problem-solving skills for coding interviews with practical examples.

Problem statement

We are given a binary tree (with a root node root), a target node, and an integer value, K.

Return a list of the values of all nodes that are K ...