輸入;"aaabbaaac"
輸出:2.25
即 :(字符串的總長度)/(相同字母團構成的字符串的個數).
package com.hello.cn;
import java.util.Scanner;
public class FindX {
public static void main(String[] args) {
Scanner s=new Scanner(System.in);
while(s.hasNext()) {
String s1=s.next();
float count=1;
for(int i=0;i<s1.length()-1;i++) {
if(s1.charAt(i)!=s1.charAt(i+1)) {
count++;
}
}
System.out.println(s1.length()/count);
}
}
}