Time: 0:00
Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).
This bug belongs to the null and undefined errors pattern
Cannot read properties of undefined, NoneType has no attribute, NaN appearing from nowhere.
What went wrong: The map was not initialized before attempting to assign a value, leading to a runtime panic.
The fix: Check if the map is nil and initialize it if necessary before making assignments.
Remember: Always initialize maps in Go before using them to avoid nil pointer dereferences.
The pattern behind it: null and undefined errors.
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