Time: 0:00
Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).
This bug belongs to the infinite loops pattern
The tab freezes, nothing prints, and the loop condition never becomes false.
What went wrong: the loop checks n > 0, but nothing inside the loop makes n smaller. n is always 3, so the loop runs forever.
The fix: add n -= 1 inside the loop.
Remember: a while loop must change the value it checks, or it never stops.
The pattern behind it: infinite loops.
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