The Streak Breaker

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

Domain

Python

Difficulty

easy

Seniority

L3

Problem

Given a list, return a new list where consecutive duplicates are collapsed to a single element (only the first of each run is kept). Non-consecutive duplicates are preserved.

Summary

It has a problem with repetition.

Practice This Problem

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