Find all values that appear more than once in the list
A medium Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- medium
Interview Prompt
Find all values that appear more than once in the list. Use a 'seen' set and a 'duplicates' set: for each value, if it is already in seen add it to duplicates, otherwise add it to seen. Print the duplicates as a sorted list.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your python solution with real code execution
- Get instant feedback and a hire/no-hire decision