Design and implement an in-memory cloud storage system that maps files to their metadata and supports:

add_file(name, size) / get_file_size(name) / delete_file(name)

get_n_largest(prefix, n) to return the n largest files with a given name prefix

multi-user support with add_user(user_id, capacity) and add_file_by(user_id, name, size) enforcing per-user capacity limits

merge_user(user_id1, user_id2) combining users and their files

backup_user(user_id) and restore_user(user_id) for versioned backups that do not affect other users’ files or capacities

Coinbase Software Engineer interview question: Design cloud storage system. {"blocks": [{"key": "9cb7f76c", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {...