How should I practice Longest Palindromic Substring?

Start by reading the full statement, solve the visible examples, then compare the pattern against related InMobi phone screen problems in FastPrep.

Is Longest Palindromic Substring associated with InMobi?

FastPrep tags this as a InMobi phone screen coding practice problem when the problem catalog has that company and stage context.

InMobi● MediumFULLTIMEPHONE SCREEN

Given a string text, return its longest contiguous substring that is a palindrome.

If multiple palindromic substrings have the maximum length, return the one with the smallest starting index.

longestPalindromicSubstring(text: String) → String

text = "ababc"return = "aba"

Both aba and bab have length 3. The substring aba starts earlier.

text = "cbbd"return = "bb"

The longest palindromic substring is bb.