public static int squares(int a, int b) {
        int min = (int)Math.ceil(Math.sqrt(a));
        int max = (int)Math.floor(Math.sqrt(b));
        int i = min;
        int result = 0;
        while(i<=max){
            if(Math.pow(i,2)>=a || Math.pow(i,2)<=b)
                result++;
            i++;
        }
        return result;
    }