Question

The distance betweeen two nodes on the stem​

Answer 1

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Distance between two nodes is defined as the number of edges in shortest path from one node from other. For example, consider below binary tree. The distance between node 7 and node 6 is 3. This problem is a standard application of lowest common ancestor of given nodes.

Explanation:

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Answer 2

Answer:there are so many no. of small paths

Explanation: