Can I use built-in functions to solve this?
You can mention them, but interviewers will immediately ask you to implement the logic manually without using built-in sorting or max functions.
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More FAQs in Finding the Second Largest Element in an Array
It tests basic array traversal, state management (tracking multiple variables), and handling of edge cases like duplicates and negative numbers.
Interviewers expect a final, optimal solution that runs in O(N) linear time, iterating through the array only once.
Yes. In an array like [10, 10, 5], the largest is 10, and the second largest is 5. Duplicates of the maximum do not count as the second largest.
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