彩色宝石项链

 1 import java.util.Scanner;
 2 /*
 3  * 
 4  *  取宝石
 5  *   1、环 所以在二倍字符串下取
 6  *   2、以长度为循环条件  5<length<list.leng
 7  *   3、遍历 取出长度为 length的字符串  判断包含contain()
 8  */
 9 public class Main {
10 static public int f(String str) {
11     String ss = str+str;
12     for (int i = 5; i <=str.length(); i++) {
13         for (int j = 0; j <=str.length(); j++) {
14             String s = ss.substring(j,j+i);
15             if (s.contains("A")&&s.contains("B")
16         &&s.contains("C")&&s.contains("D")&&s.contains("E")) {
17                 return  str.length()-i;
18             }
19         }
20     }
21     return 0;
22 }
23 public static void main(String[] args) {
24     Scanner sc = new Scanner(System.in);
25     String str = sc.nextLine();
26     String ss = str+str;
27     int res = f(str);
28     System.out.println(res);
29 }
30 }