蓝桥杯第八届真题 ：Excel地址

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Excel地址

1.基本思路和进制转换相似
2.利用余数，选择字符，添加在字符串末尾
3.最后将字符串逆序

import java.util.*;
public class Main007_Excel地址 {
    public static void main(String[] args) {
  	// TODO Auto-generated method stub
  	Scanner in = new Scanner(System.in);
  	int a = in.nextInt();
  	String str = "ZABCDEFGHIJKLMNOPQRSTUVWXY";
  	StringBuffer sb = new StringBuffer();
   	while(a>0) {
    	    if(a%26==0) {
     	        sb.append(str.charAt(a%26));
     	        a=a-26;
    	    }else {
     	        sb.append(str.charAt(a%26));
    	    }
    	    a=a/26;
   	}
   	sb.reverse();
   	System.out.println(sb);
    }
}