Implement Lowest Common Ancestor

[ay2306]

• Use Range Minimum Query
• Put your file in the right folder (/Algorithms/TREES/LCA).
• Do corresponding additions in the documentation.
• Comment your code where necessary.

[PrachiSharma12]

I will work on this

[Manvityagi]

I will work on this

Assigned to you @PrachiSharma12