How should I practice Workspace File System With Folders and Tables?

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Workspace File System With Folders and Tables

Clay● MediumFULLTIMEPHONE SCREEN

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Problem statement

Model a workspace containing folders and table items.

CREATE_FOLDER path recursively creates missing folders and returns whether no table blocks the path.
CREATE_TABLE path creates a table when its parent folder exists and the path is unused.
LIST path returns direct children sorted as comma-separated F:name and T:name.
DELETE path removes a table, or a folder and all nested folders and tables. Root cannot be deleted.

Return one string per operation.

Function

runWorkspaceFileSystem(operations: String[][]) → String[]

Examples

Example 1

operations = [["CREATE_FOLDER","/sales/2026"],["CREATE_TABLE","/sales/2026/q1"],["LIST","/sales/2026"],["DELETE","/sales"],["LIST","/"]]return = ["true","true","T:q1","true",""]

Folder creation is recursive and deletion cascades through the table.

Example 2

operations = [["CREATE_FOLDER","/b"],["CREATE_FOLDER","/a"],["CREATE_TABLE","/z"],["LIST","/"]]return = ["true","true","true","F:a,F:b,T:z"]

Direct children are typed and sorted.

Constraints

1 <= operations.length <= 10000
Paths are normalized absolute paths.
Each path is either a folder or a table, never both.