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题目描述:

  

   解题思路:

    依次枚举100000-1000000之间的数 i ,

      1、转换为字符串strpre,把原字符串strpre与反转后的字符串strturn进行比较,如果相同则判定该字符串是回文数。

      2、把数值i付值给number,用辗转相除法取出number的每一位累加到sum上,如果sum和输入数值n相同,则数值i即为符合题意的特殊回文数。

 

   锦囊妙计:

  

 

  代码展示:

  

import java.util.Scanner;

public class Main{

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int number,len,sum = 0,i,j;
        char[] array = new char[6];
        String strpre = "";
        String strturn = "";
        StringBuilder strbuilder = new StringBuilder();
        for(i = 10000; i<1000000; i++) {
            number = i;
            strpre = Integer.toString(i);  
            array = strpre.toCharArray();
            
            while(number > 0) {
                sum += number % 10;
                number = number / 10;
            }
            
            len = array.length;
            
            for(j = len - 1; j >= 0; j--) {
                strbuilder.append(array[j]);
            }
            
            strturn = strbuilder.toString();
            
            if(strpre.equals(strturn)) {
                if(n == sum) {
                      System.out.println(i);
                }
            }
            strbuilder = new StringBuilder();
            sum = 0;
        }
    }
}

  

  评测状态:

  

posted on 2018-01-26 00:06  肖薇  阅读(595)  评论(0编辑  收藏  举报