编辑代码

class Main {
	public static void main(String[] args) {
        String str = "guan zhu jia ran dun dun jie chan Diana kawaii kawaii kawaii nei";
        childStr(str);
		//System.out.println("");
	}

     public static void childStr(String str) {
        String[] strings = str.split(" ");
        int count = 0;
        for (int i = 0; i < strings.length; i++) {
            String current = strings[i];
            if (i + 1 < strings.length && i + 2 < strings.length) {
                String second = strings[i + 1];
                String third = strings[i + 2];
                if ((current.equals(second)==true) && (second.equals(third)==false)) {
                    i = i + 2;
                    count += 1;
                }
            }
        }
        System.out.println(count);
    }
}