The answer
If not explicitly ignored, a duplicate of the maximum value will overwrite the second largest variable, resulting in both variables holding the maximum value.
Handling Arrays with Duplicate Elements
How do duplicates break the second largest algorithm?
More FAQs in Handling Arrays with Duplicate Elements
Add a logical AND condition (current != max) when evaluating whether to update the second largest variable.
It does not exist. The only distinct value is 5. Your code should recognize this and return a sentinel value like -1 or throw an exception.
If the current value equals the max, the first condition (current > max) fails. It falls to the second condition, which also fails because of the current != max check, safely ignoring the duplicate.
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