题解 | #最长回文子串#
https://www.nowcoder.com/practice/b4525d1d84934cf280439aeecc36f4af
import java.util.*; public class Solution { /** * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 * * * @param A string字符串 * @return int整型 */ public int getLongestPalindrome (String s) { // write code here int n = s.length(); boolean[][] dp = new boolean[n][n]; for(int i = 0; i < n; i++ ) dp[i][i] = true; int max = 0; for(int i = n-1; i >= 0; i-- ){ for(int j = i; j < n; j++){ if(s.charAt(i) == s.charAt(j)){ dp[i][j] = j - i <= 2|| dp[i+1][j-1]; if(dp[i][j]) max = Math.max(max,j-i+1); } } } return max; } }