Level 2Exercise #42
Locate failed tests
Return the indices of every False test result.
What you’ll practice
This Level 2 exercise focuses on enumerate filtering in the Built-ins curriculum. Solve the challenge prompt above using clear, idiomatic Python and the relevant language or standard-library tools.
Relevant Python reference: enumerate(), filter().
Sample Test Cases
Example #1
Input:
failed_indices([True,False,True,False])Output:
[1,3]Further Reading
Reference Solution
Reveal Reference Solution
def failed_indices(results: list[bool]) -> list[int]: return [i for i, passed in enumerate(results) if not passed]Pro Tips & Keyboard Shortcuts
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