LCA in Binary Tree using Euler tour and Range Minimum Query

In this problem, we will find the Lowest Common Ancestor of a Binary Tree using Euler tour and Range Minimum Query. We can solve the LCA problem by reducing it to a RMQ problem. There are many approaches to find the LCA of nodes but have different space and time complexities. This is the most efficient approach.

Range Minimum Query is used on arrays to find the position of an element with minimum value between two specified indices. There are many approaches to implement Range Minimum Query meth...