Longest Duplicate Substring: coding question

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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
Leetcode 1044. Longest Duplicate Substring
Reported Nov 12, 2024 · 1 source report
JUNIOR
Source snapshot: Nov 12, 2026
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Longest Duplicate Substring

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Longest Duplicate Substring

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