题解 | #记票统计#

import java.util.*;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int count = 0;
        List<String> list = new ArrayList<>();
        while(scanner.hasNextLine()){
            String input = scanner.nextLine();
            if(input != null && !"".equals(input.trim())){
                count++;
                list.add(input);
                if(count == 4){
                    break;
                }
            }
        }
        List<String> resultList = Arrays.asList(list.get(1).split(" "));
        String[] array = list.get(3).split(" ");
        Map<String, Integer> resultMap = new HashMap<>();
        for(int i=0; i<array.length; i++){
            int num = 0;
            for(String temp : resultList){
                num++;
                if(array[i].equals(temp)){
                    if(resultMap.containsKey(temp)){
                        resultMap.put(temp, resultMap.get(temp)+1);
                    }else{
                        resultMap.put(temp, 1);
                    }
                    break;
                }
                if(num != resultList.size()){
                    continue;
                }
                if(resultMap.containsKey("Invalid")){
                    resultMap.put("Invalid", resultMap.get("Invalid") + 1);
                    break;
                }
                resultMap.put("Invalid", 1);
            }
        }
        for(String key : resultList){
            System.out.println(key + " : "+(resultMap.get(key)==null?0:resultMap.get(key)));
        }
        if(resultMap.get("Invalid")==null){
            System.out.println("Invalid : 0");
        }else{
            System.out.println("Invalid : "+resultMap.get("Invalid"));
        }
    }
}