題目:
https://onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=16&page=show_problem&problem=1361
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| #include <iostream>
#include <sstream>
#include <vector>
#include <string>
#include <map>
using namespace std;
int main(){
int n;
cin >> n >> ws;
string text;
map<string, int> m;
while(n--){
getline(cin, text);
stringstream ss(text);
string country;
ss >> country;
m[country]++;
}
for(const auto& p : m){
cout << p.first << " " << p.second << '\n';
}
}
|
