题解 | #统计回文#

import java.util.*;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNext()) { // 注意 while 处理多个 case
           String A = in.nextLine();
           String B = in.nextLine();
           int len = A.length();
           int count = 0;
           for(int i = 0; i <= len; i++) {
            StringBuffer str = new StringBuffer(A);
            str = str.insert(i, B);
            if(reverse(str)) {
                count++;
            }
           }
           System.out.println(count);
            
        }
    }
    public static boolean reverse(StringBuffer s) {
        int left = 0; 
        int right = s.length()-1;
        while(left < right) {
           if(s.charAt(left) != s.charAt(right)) {
            return false;
           }
           left++;
           right--;
        }
        return true;
    }
}