C++ 输入5个字符串,按英文字典顺序,由小到大顺序输出

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <iterator>
using namespace std;
int main()
{
vector<string> vs;
string s;
for (int i = 0; i < 5; i++) cin >> s, vs.push_back(s);
sort(vs.begin(), vs.end());
copy(vs.begin(), vs.end(), ostream_iterator<string>(cout, "\n"));
return 0;
}