C++中如何编写sort函数

Question

本人初学计算机C++语言，练习vector，需要用到sort函数，但是电脑中没有这个函数，请问如何编写sort函数？

Answer 1

又试了一下，windows Ctrl + Z 是可以终止输入的：

#include <iostream>
#include <vector>
#include <algorithm>
#include <string>

using namespace std;

int main()
{
    vector<string> words;
    for (string temp; cin >> temp;)
        words.push_back(temp);

    cout << words.size() << endl;
    sort(words.begin(), words.end());
    for (size_t i = 0; i < words.size(); i++)
        cout << words[i] << " ";
    // 删除重复的单词
    words.erase(unique(words.begin(), words.end()), words.end());
    cout << endl;
    cout << words.size() << endl;
    for (size_t i = 0; i < words.size(); i++)
        cout << words[i] << " ";

    return 0;
}

测试如下：

this is my vector you know my vector
^Z
8
is know my my this vector vector you
6
is know my this vector you 请按任意键继续. . .