1. You are given a partially written GenericTree class.
2. You are required to complete the body of distanceBetweenNodes function. The function is expected to return the distance (in terms of number of edges) between two nodes in a generic tree.
Please watch the question video to understand what lca is.
3. Input and Output is managed for you.
Input Format
Input is managed for you
Output Format
Output is managed for you
Constraints
None
Notice
Try First, Check Solution later
1. You should first read the question and watch the question video.2. Think of a solution approach, then try and submit the question on editor tab.3. We strongly advise you to watch the solution video for prescribed approach.Example
Input
24 10 20 50 -1 60 -1 -1 30 70 -1 80 110 -1 120 -1 -1 90 -1 -1 40 100 -1 -1 -1 100 110
Output
5