Triangle Validator

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

medium

Seniority

L5

Problem

Given a list of positive lengths, return the count of unique triplets (i<j<k) where lengths[i]+lengths[j]>lengths[k] AND the two similar triangle inequalities hold.

Summary

Not every triangle is a triangle.

Practice This Problem

Solve this Python problem with real code execution. DataDriven runs your Python code in a real environment and grades it automatically.