Time: 0:00
Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).
This bug belongs to the type errors pattern
Totals that concatenate, sorts that put 10 before 9, comparisons that refuse to run.
What went wrong: // throws away the remainder. 3 // 4 is 0 before the code ever multiplies by 100.
The fix: return correct * 100 // total
Remember: with whole-number division, multiply before you divide.
The pattern behind it: type errors.
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