3
Spain Donna Elvira
England Jane Doe
Spain Donna Anna

England 1
Spain 2

 1 #include<iostream>
 2 #include<vector>
 3 #include<cstdio>
 4 #include<cstring>
 5 #include<string>
 6 #include<algorithm>
 7 using namespace std;
 8 
 9 struct Country{
10     string name;
11     int count = 0;
12     bool operator == (const Country& b) {
13         return this->name == b.name;
14     }
15 };
16 
17 int cmp(const Country& a, const Country& b){ return a.name < b.name; }
18 
19 vector<Country> Countries;
20 int main()
21 {
22     int n;
23     char str[75];
24     scanf("%d", &n);
25     for (int i = 0; i < n; i++)
26     {
27         scanf("%s", str);            //获得国家名
28         char c;
29         c = getchar();
30         while (c != ‘\n‘&&c != EOF){ c = getchar(); }    //忽视姓名
31         Country nowCt;
32         nowCt.name = str;
33         vector<Country>::iterator iter = find(Countries.begin(), Countries.end(), nowCt);
34         if (iter == Countries.end())
35         {
36             nowCt.count = 1;
37             Countries.push_back(nowCt);
38         }
39         else
40         {
41             iter->count++;
42         }
43     }
44     sort(Countries.begin(), Countries.end(), cmp);        //排序
45     for (vector<Country>::iterator it = Countries.begin(); it != Countries.end();it++)
46     {
47         cout << it->name << " " << it->count << endl;
48     }
49     return 0;
50 }