Exercise: store department information

#include <iostream>
#include <string>
#include <algorithm>
#include <map>

using namespace std;
class Employee
{
private:
    int id;
    string name;
public:
    Employee(int i, string n)
    {
        id = i;
        name = n;
    }
    void show()
    {
        cout << " Job number ： " << id << "  full name ： " << name << endl;
    }

};

int main(void)
{
    Employee e1(10, "aa");
    Employee e2(11, "ab");
    Employee e3(12, "ac");
    Employee e4(13, "ad");
    Employee e5(14, "af");
    Employee e6(15, "ag");
    Employee e7(16, "ah");
    Employee e8(17, "aj");
    multimap<string, Employee> m;
    //
    m.emplace("salse", e1);
    m.emplace("salse", e2);

    //
    m.insert(make_pair("delpment", e3));
    m.insert(make_pair("delpment", e4));

    //
    m.emplace(pair<string, Employee>("fans", e5));
    m.emplace(pair<string, Employee>("fans", e6));
    m.emplace(pair<string, Employee>("fans", e7));
    m.emplace(pair<string, Employee>("fans", e8));
    for(auto &l : m)
    {
        cout << " department ：" << l.first << " ";
        l.second.show();
    }
    return 0;
}

#include <iostream>
#include <stack>
#include <queue>

using namespace std;

int main(void)
{
    stack<int> s;
    for(int i=0; i<10; i++)
    {
        s.push(i);
    }
    cout << s.top() << endl;
    cout << s.size() << endl;

    cout << "________________" << endl;
    while(!s.empty())
    {
        cout << s.top() << endl;
        s.pop();
    }
    cout << "________________" << endl;
    queue<int> q;
    for(int i=0; i<10; i++)
    {
        q.push(i);
    }
    cout << q.front() << endl;
    cout << q.back() << endl;
    cout << q.size() << endl;

    cout << "________________" << endl;
    while(!q.empty())
    {
        cout << q.front() << endl;
        q.pop();
    }
    cout << "________________" << endl;


    priority_queue<int,deque<int>,less<int>> p;
    for(int i=0; i<10; i++)
    {
        p.emplace(i);
    }
    cout << p.top() << endl;
    cout << p.size() << endl;

    cout << "________________" << endl;
    while(!p.empty())
    {
        cout << p.top() << endl;
        p.pop();
    }
    cout << "________________" << endl;
}