Show the multiplication trap: create wrong = [[0] * 3] * 3, set wrong[0][0] = 1, and print wrong

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

Domain

Python

Difficulty

medium

Problem

Show the multiplication trap: create wrong = [[0] * 3] * 3, set wrong[0][0] = 1, and print wrong. Then create right = [[0] * 3 for _ in range(3)], set right[0][0] = 1, and print right.

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