Palindrome Practice Questions - Java

Medium: Longest Palindromic Substring. Given a string s, return the longest palindromic substring in s. Examples: Input: s = "babad" Output: "bab" Note: "aba" is also a valid answer. Input: s = "cbbd" Output: "bb" Input: s = "ac" Output: "a"

See DP approach in DP study sets.

Medium: Palindromic Substrings. Given a string, your task is to count how many palindromic substrings in this string. The substrings with different start indexes or end indexes are counted as different substrings even they consist of same characters. Examples: Input: "abc" Output: 3 Explanation: Three palindromic strings: "a", "b", "c". Input: "aaa" Output: 6 Explanation: Six palindromic strings: "a", "a", "a", "aa", "aa", "aaa".

See DP approach in DP study sets.