Three That Hold
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
- Seniority
- L5
Interview Prompt
You're auditing a batch of rod lengths pulled from a parts inventory to see how many real triangles could be built from them. Count the groups of three rods that can form a valid triangle, where each side must be shorter than the sum of the other two. Rods sitting at different positions count as separate groups even when their lengths match, and the order of sides within a group does not matter.
Summary
Not every triangle is a triangle.
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