Room Mapper

You are given a 2D grid of rooms where 'R' represents a room and 'W' represents a wall. Write a function to find the largest area of connected rooms. The area is defined as the number of rooms that are connected vertically or horizontally. Input Format: - The first line contains two integers, m and n (dimensions of the room grid). - The following m lines each contain n characters ('R' or 'W'). Output Format: - Print the size of the largest connected area of rooms. Example Input: 4 4 R R W R R W R R W R R W R R R R Example Output: 7