Time: 0:00
Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).
This bug belongs to the logic errors pattern
The wrong operator, an inverted condition, a formula the right way round but backwards.
What went wrong: Python 3 round() implements round-half-to-even. -2.5 rounds toward zero to -2 because -2 is even.
The fix: Use explicit math ceiling for negative half-values: math.ceil(score - 0.5)
Remember: In Python 3, round(-2.5) is -2, while round(-3.5) is -4 due to banker's rounding.
The pattern behind it: logic errors.
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<iframe src="https://trybughunt.com/embed/c777a5eb-7dd1-4d3b-8fba-e9439905e8fa" title="Debugging challenge: Negative banker rounding rounds midpoint toward even integer" width="100%" height="580" loading="lazy" style="border:1px solid #d4d4d8;border-radius:12px;max-width:760px"></iframe>
<p style="font-size:14px">Debugging challenge from <a href="https://trybughunt.com/challenges/c777a5eb-7dd1-4d3b-8fba-e9439905e8fa">TryBugHunt</a></p>