## Problem Full multi-level cloud storage implementation. Must pass all unit tests to unlock subsequent levels. **Level 1:** Core file operations. - `ADD_FILE path size` -> "added" or "error" if path exists - `COPY_FILE src dst` -> "copied" or "error" - `GET_FILE_SIZE path` -> size or "error" **Level 2:** Prefix/suffix search. - `FIND_FILES prefix suffix` -> all files matching both; sort by size desc, then name asc. Return as `"name(size)"`. **Level 3:** User management. - `ADD_USER user_id capacity` - `ADD_FILE_BY user_id path size` -> adds file; if user over capacity, delete their largest files until under capacity. - `UPDATE_CAPACITY user_id new_cap` **Level 4:** Compression. - `COMPRESS_FILE path` -> halves file size (floor), appends `".compressed"` to name. - `DECOMPRESS_FILE path` -> reverses compression. Error if file was never compressed or already decompressed. ## Follow-ups - How do you efficiently find a user's largest file for eviction in Level 3? - In Level 4, how do you track the original size to restore it exactly on decompress? - What is the time complexity of `FIND_FILES` across n files?

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Cloud Storage System All Levels - Industry Coding Framework Interview

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Problem Full multi-level cloud storage implementation. Must pass all unit tests to unlock subsequent levels. Level 1: Core file operations. ADD_FILE path size -> "added" or "error" if path exists COPY_FILE src dst -> "copied" or "error" GET_FILE_SIZE path -> size or "error" Level 2: Prefix/suffix search. FIND_FILES prefix suffix -> all files matching both; sort by size desc, then name asc. Return as "name(size)". Level 3: User management. ADD_USER user_id capacity ADD_FILE_BY user_id path size -…

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Cloud Storage System All Levels - Industry Coding Framework Interview

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