Longest Palindromic Substring

Short summary

Tutorial on solving LeetCode's longest palindromic substring problem using two approaches: brute force O(N³) and expand-around-center O(N²). Code examples in Java with explanations of time/space complexity and the intuition behind the optimal solution.

• •Brute force: check all substrings, O(N³) time complexity
• •Optimal: expand from every palindrome center, O(N²) time
• •Tutorial with working Java implementations for both approaches

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