1370 问题 J: SPY

时间限制: 1s 内存限制: 128MB 提交: 107 解决: 23
题目描述
The National Intelligence Council of X Nation receives a piece of credible information that Nation Y will send spies to steal Nation X’s confidential paper. So the commander of The National Intelligence Council take measures immediately, he will investigate people who will come into NationX. At the same time, there are two List in the Commander’s hand, one is full of spies that Nation Y will send to Nation X, and the other one is full of spies that Nation X has sent to Nation Y before. There may be some overlaps of the two list. Because the spy may act two roles at the same time, which means that he may be the one that is sent from Nation X to Nation Y, we just call this type a “dual-spy”. So Nation Y may send “dual_spy” back to Nation X, and it is obvious now that it is good for Nation X, because “dual_spy” may bring back NationY’s confidential paper without worrying to be detention by NationY’s frontier So the commander decides to seize those that are sent by NationY, and let the ordinary people and the “dual_spy” in at the same time .So can you decide a list that should be caught by the Commander?

A:the list contains that will come to the NationX’s frontier.
B:the list contains spies that will be sent by Nation Y.
C:the list contains spies that were sent to NationY before.
输入
There are several test cases.
Each test case contains four parts, the first part contains 3 positive integers A, B, C, and A is the number which will come into the frontier. B is the number that will be sent by Nation Y, and C is the number that NationX has sent to NationY before.
The second part contains A strings, the name list of that will come into the frontier.
The second part contains B strings, the name list of that are sent by NationY.
The second part contains C strings, the name list of the “dual_spy”.
There will be a blank line after each test case.
There won’t be any repetitive names in a single list, if repetitive names appear in two lists, they mean the same people.
输出
Output the list that the commander should caught (in the appearance order of the lists B).if no one should be caught, then , you should output “No enemy spy”.
样例输入
8 4 3
Zhao Qian Sun Li Zhou Wu Zheng Wang
Zhao Qian Sun Li
Zhao Zhou Zheng
2 2 2
Zhao Qian
Zhao Qian
Zhao Qian
Qian Sun Li
样例输出
Qian Sun Li
No enemy spy
提示

零基础的同学可以先学习基础,教程见:  C语言教程C++教程编译器教程数据结构教程Python教程单片机教程

视频教学见视频网课

比赛公告

题号:1361,1362,1363,1364,1365,1366,1367,1368,1369,1370

点击上方导航栏的训练,点击题库,寻找题号即可找到对应题目,比赛结束后,请通过训练->题库->寻找对应题目的方式做题

因为不确定因素太多,就不再安排大家轮流讲题了,大家做不出题可以在测试结束后去题库找对应的题目看题解,希望大家自觉练习,认真练习,考核测试会采取不同与现在测试的方式,两个月后综合测试成绩不达标者会退出实验室,希望大家认真对待