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The Spin Doctor

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

Domain
Python
Difficulty
medium
Seniority
mid, senior

Problem

Write a function that takes an n x n matrix (list of lists of integers) and returns a new matrix rotated 90 degrees counter-clockwise. Do not modify the input matrix.

Practice This Problem

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