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Longest Palindromic Substring

medium Solve on LeetCode

Last edited: October 12, 2025

Problem
Examples
Solution
Video explanation
Method 1 - Brute Force
Code
Complexity
Method 2 - Dynamic Programming
Code
Complexity
Dry Run
Method 3 - Generate the Palindromes by expanding from middle 🏆
Code
Slightly cleaner code
Code
Complexity
Method 4 - Manacher's Algorithm

video explanation

Related Tags

daily-coding-problem dynamic-programming interviewbit leetcode longest palindrome string string-algo substring two-pointers video

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