/**
 * 
 * @version: 1.1.0
 * @Description: 特殊等价字符串组test
 * @author: wsq
 * @date: 2020年6月7日下午9:00:24
 */
@SuppressWarnings("all")
public class FirstProblem {
    public static void main(String[] args) {
        // 获取用户输入的集合
        List<String> inputList = getInputList();
        // 获取结果
        int count = getResultList(inputList);
        System.err.println("The count is:" + count);
    }

    /**
     * 
     * @Description: 获取用户输入的集合
     * @author: wsq
     * @date: 2020年6月7日下午9:00:24
     */
    public static List<String> getInputList() {
        List<String> inputList = new ArrayList<String>();
        int stringSize = 0;
        while (true) {
            // 输入每一个字符串的长度
            System.out.println("Please input the length of each string");
            stringSize = new Scanner(System.in).nextInt();
            if (stringSize < 20) {
                break;
            }
            // 长度不可以超过20
            System.out.println("Please input again,the length of the string cannot exceed 20");
        }
        while (true) {
            // 数组总长度不可以超过1000
            if (inputList.size() == 1000) {
                System.out.println("The length is exceed 1000,you can‘t input anything");
                break;
            }
            System.out.println("Please input string");
            String value = new Scanner(System.in).nextLine();
            // 每个字符串长度必须相同
            if (value.length() != stringSize) {
                System.out.println("Please input again,the string length must be 20" + stringSize);
                continue;
            }
            // 字符串必须都为小写字母
            if (!isLetterDigit(value)) {
                System.out.println("Please input again,string must consist of lowercase letters");
                continue;
            }
            inputList.add(value);
            // 输入N退出循环，停止输入
            System.out.println("Input anything to go on or input ‘N‘ to leave");
            String button = new Scanner(System.in).nextLine();
            if (button.equals("N")) {
                break;
            }
        }
        return inputList;
    }

    /**
     * 
     * @Description: 获取最终的结果
     * @author: wsq
     * @date: 2020年6月7日下午9:00:24
     */
    public static int getResultList(List<String> inputList) {
        // 用户存储处理过的数据(去重)
        Set<String> changeList = new HashSet<String>();
        for (int index = 0; index < inputList.size(); index++) {
            // 用来放奇数
            List<Character> oddList = new ArrayList<Character>();
            // 用来放偶数
            List<Character> evenList = new ArrayList<Character>();
            String input = inputList.get(index);
            char[] array = input.toCharArray();
            // 奇偶分离
            for (int i = 0; i < array.length; i++) {
                if (i % 2 != 0) {
                    oddList.add(array[i]);
                } else {
                    evenList.add(array[i]);
                }
            }
            // 分别排序
            Collections.sort(oddList);
            Collections.sort(evenList);
            // 集合合并
            oddList.addAll(evenList);
            // 转化为字符串
            String change = oddList.stream().map(String::valueOf).collect(Collectors.joining(","));
            changeList.add(change);
        }
        return changeList.size();
    }

    /**
     * 
     * @Description: 正则表达式（只能为小写字母）
     * @author: wsq
     * @date: 2020年6月7日下午9:00:24
     */
    public static boolean isLetterDigit(String str) {
        String regex = "^[a-z]+$";
        return str.matches(regex);
    }