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: The code attempts to assert an interface type directly to an int without checking the actual underlying type, leading to a panic when the type is float64.
The fix: Use a type switch to handle different possible types and convert them appropriately.
Remember: Always check the type of an interface value before asserting it to a concrete type.
The pattern behind it: type errors.
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