题目链接:
题解
#include<iostream>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<vector>
using namespace std;
int a, b, c;
int main()
{
while(cin>>a>>b>>c){//多组数据输入
vector <string> vis;// 游客
vector <string> yx;// 从y国派到x果的名单
vector <string> xy;// 从x国派到y果的名单
string str;
for(int i=1; i<=a; i++){
cin>>str; vis.push_back(str);
}
for(int i=1; i<=b; i++){
cin>>str; yx.push_back(str);
}
for(int i=1; i<=c; i++){
cin>>str; xy.push_back(str);
}
vector <string> ans;
for(string s:yx){//从第二个名单中找在第 一个名单上,但不在第三个名单上的人即为答案
if(find(vis.begin(), vis.end(), s) != vis.end() && find(xy.begin(), xy.end(), s) == xy.end())
ans.push_back(s);
}
if(!ans.empty()){//输出答案名单
for(string s:ans)
cout<<s<<" ";
}
else
cout<<"No enemy spy";
cout<<endl;
}
return 0;
}
标签:spy,int,vis,xy,str,ans,include
From: https://www.cnblogs.com/tflsnoi/p/16785107.html