House Room Area Report

A house has between 3 and 6 rooms. Read the number of rooms (re-read until it is in range). For each room, read its name, length in metres, and width in metres. Store the area in a second index of a 2D array as length × width.

Then output every room's name, length, width, and area, followed by:

• the name of the largest room
• the name of the smallest room
• the total area
• the average area, rounded to 2 decimal places

If two rooms share the same extreme area, keep the first one found.

Input: Room count (validated 3–6), then name, length, width for each room. Output: One block per room, then the four summary lines.

Example:

Input:  3
        Kitchen
        4
        5
        Store
        3
        3
        Lounge
        6
        4
Output: Room: Kitchen
        Length: 4 metres
        Width: 5 metres
        Area: 20 square metres
        Room: Store
        Length: 3 metres
        Width: 3 metres
        Area: 9 square metres
        Room: Lounge
        Length: 6 metres
        Width: 4 metres
        Area: 24 square metres
        Largest: Lounge
        Smallest: Store
        Total area: 53
        Average area: 17.67