Time: 0:00
Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).
This bug belongs to the off-by-one errors pattern
The loop that runs one time too many, the slice that drops the last item, the index that starts in the wrong place.
What went wrong: the loop starts at index 1, so rounds[0], the first round, is skipped.
The fix: for (let i = 0; i < rounds.length; i++)
Remember: arrays start at 0. A total short by the first value means the loop started at 1.
The pattern behind it: off-by-one errors.
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<iframe src="https://trybughunt.com/embed/f40f1151-bbf0-4090-a6ea-34957f5b21a4" title="Debugging challenge: Score total skips the first round" 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/f40f1151-bbf0-4090-a6ea-34957f5b21a4">TryBugHunt</a></p>