Cloud Storage Management

Implement a cloud storage management system supporting user management, file operations, and storage capacity management. Requirements are as follows: Implement add_user(user_id, capacity) method to create a user with specified storage capacity. Implement update_capacity(user_id, new_capacity) method to update user's storage capacity. If the user exceeds the new capacity, delete files from largest to smallest until the limit is satisfied. Implement compress_file(user_id, file_name) and decompress_file(user_id, file_name) methods to convert between file name and its compressed version (e.g., file.txt <-> file.txt.compressed), and adjust file size (compressed size is half, decompressed size is double). Ensure that users and files exist as needed and perform operations accordingly. Assume each file has a fixed initial size, and file operations should consider performance and robustness. Sample Input: add_user('user1', 1000) add_user('user2', 500) compress_file('user1', 'photo.png') update_capacity('user1', 400) decompress_file('user1', 'photo.png.compressed') Hints: Consider prioritizing space reduction and access efficiency in file deletions and storage operations. Data scale: Up to 1000 users Each user can have up to 2000 files Single file max size 100 MB Example Input add_user('user1', 1000) add_user('user2', 500) update_capacity('user1', 400)