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Technical2026-08-13

Find the second largest element in an array, including edge case discussions.

AI-Expanded — inferred from the question title, not from the original candidate report

Given an array of integers, write a function to find and return the second largest unique element present in the collection. Your solution should handle edge cases such as arrays with fewer than two unique elements or arrays containing all identical values, and you should aim to achieve an optimal time complexity of O(n).

Context & Summary

Discussion around Data Structures and Algorithms (DSA) with a focus on medium/easy level problems.

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