Longest Happy Prefix
Explore how to identify the longest happy prefix in a given string by understanding prefix and suffix overlaps. Learn to apply hash map concepts to efficiently solve this problem, strengthening your skills for common coding interview challenges.
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Statement
Given a string, s, find the longest happy prefix. If no such prefix exists, return an empty string "".
Note: A happy prefix of a string is a non-empty substring at the beginning that also appears at the end (but not the entire string itself).
Constraints:
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