LeetCode 5 的题目是 "最长回文子串"。题目要求你找到一个字符串中最长的回文子串。回文是指正着读和反着读都相同的字符串。你需要返回这个最长的回文子串。 简单来说,就是找出字符串中最长的对称部分。 读题 常见解法 LeetCode 5(Longest Palindromic Substring)的常见解法有多种,每种解法都有不同的特点和时间...
public class Solution { /** * @param s: input string * @return: the longest palindromic substring */ public String longestPalindrome(String s) { // write your code here char[] S = s.toCharArray(); int sLength = S.length; String[][] f = new String[sLength ][sLength ]; return ...
class Solution { public: string longestPalindrome(string s) { string res = s.substr(0,1); int length = 1; bool ** P = new bool*[s.length()]; for(int i = 0; i < s.length(); i++) { P[i] = new bool[s.length()]; P[i][i] = true; if(i != s.length() && s[i...
public String longestPalindrome(String s) { // 改造字符串,每个字符间添加#。添加头^尾$两个不同的字符用于消除边界判断 StringBuilder sb = new StringBuilder("^"); for (int i = 0, len = s.length(); i < len; i++) sb.append("#").append(s.charAt(i)); sb.append("#$"); int c ...
具体的Manacher线性算法详见《最长回文子串(Longest Palindromic Substring)》。 利用一个辅助数组 arr[n],其中 arr[i] 记录的是以 str[i] 为中心的回文子串长度。当计算 arr[i] 的时候,arr[0...i-1] 是已知并且可被利用的。Manacher 核心在于:用 mx 记录之前计算的最长的回文子串长度所能到达的最后边界,用...
5. Longest Palindromic Substring Given a strings, returnthe longestpalindromicsubstringins. Example 1: Input:s = "babad"Output:"bab"Explanation:"aba" is also a valid answer. Example 2: Input:s = "cbbd"Output:"bb" Constraints: 1 <= s.length <= 1000...
#ms, m = x, j-i+1 # x 一定比原来的 ms 长,一开始想的是 m += 1,结果可能几个以后才是回文子串。 ms = x return ms 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 精减一下 ...
Leetcode-Medium 5. Longest Palindromic Substring,题目描述给定一个字符串s,找到s中最长的回文子串。你可以假设s长度最长为1000。Example1:Input:ut:"cbbd"Output:"bb"思路假如输入的字符串长度就...
LeetCode题5Longest Palindromic Substring 简介 LeetCode刷题，是为了获得面经，这是题目5的java实现解法 工具/原料 笔记本 eclipse 方法/步骤 1 题目叙述Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest ...
Can you solve this real interview question? Longest Palindromic Subsequence - Given a string s, find the longest palindromic subsequence's length in s. A subsequence is a sequence that can be derived from another sequence by deleting some or no elements