1. You are given a partially written GenericTree class. 2. You are required to complete the body of lca function. The function is expected to return the lowest common ancestor of two data values that are passed to it. 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 -1 120 80
Output
80