The Grid Pivot

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

Domain

Python

Difficulty

easy

Seniority

L3

Problem

A metrics export arrives as `matrix`, a list of equal-length rows of readings. Return that grid turned on its side, so each original column becomes a row, and return an empty list when `matrix` is empty.

Summary

A different angle reveals a completely different picture.

Practice This Problem

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