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Longest Palindromic Substring (medium)
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Problem Statement

Given a string s, return the longest palindromic substring in s.

A string is called palindromic if it reads same from forward as backward.

A substring is a contiguous sequence of characters in the string.

Examples

  • Example 1:

    • Input: s = "racecar"
    • Expected Output: "racecar"
    • Justification: The entire string is a palindrome and is the longest substring.

  • Example 2:

    • Input: s = "abccd"
    • Expected Output: "cc"
    • Justification: The longest palindromic substring is "cc" in the string abccd

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