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Distinct departments

Write codeEasy10 min

Your task

To populate a dropdown filter, extract the department list from a raw HR export. Each row is "name,dept". Return the distinct department names, sorted alphabetically. Example: ["ava,eng", "raj,sales", "mia,eng"] gives ["eng", "sales"].

Examples

list_departments(rows: list[str]) -> list[str]
Example 1
Inputlist_departments(["ava,eng", "raj,sales", "mia,eng"])
Output["eng", "sales"]