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Leetcode 1044. Longest Duplicate Substring
Find the longest contiguous substring that appears at least twice (overlaps allowed) in a given lowercase string, or return "" if none exists. With n up to 3·10^4, this typically requires efficient techniques such as suffix arrays/LCP or binary search with rolling hash.
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Amazon
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Mid November, 2024
Amazon
Junior
Longest Repeating Substring: Find the longest duplicated substring in a given string. If no such substring exists, return an empty string.
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