Package g0401_0500.s0409_longest_palindrome

Class Solution

java.lang.Object
g0401_0500.s0409_longest_palindrome.Solution
public class Solution extends java.lang.Object
409 - Longest Palindrome.

Easy

Given a string s which consists of lowercase or uppercase letters, return the length of the longest palindrome that can be built with those letters.

Letters are case sensitive , for example, "Aa" is not considered a palindrome here.

Example 1:

Input: s = “abccccdd”

Output: 7

Explanation: One longest palindrome that can be built is “dccaccd”, whose length is 7.

Example 2:

Input: s = “a”

Output: 1

Example 3:

Input: s = “bb”

Output: 2

Constraints:

  • 1 <= s.length <= 2000
  • s consists of lowercase and/or uppercase English letters only.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    longestPalindrome(java.lang.String s)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • longestPalindrome

      public int longestPalindrome(java.lang.String s)