multimap-rend

////////////////////////////////////////
//      2018/05/06 9:13:38
//      multimap-rend

// returns a reverse iterator to the beginning of the maltimap
#include <iostream>
#include <map>
#include <iomanip>
#include <string>

using namespace std;

template<class T>
class ID{
public:
    ID(T t, T n) :id(t), name(n){}
    void print(){
        cout.setf(ios::left);
        cout << setw(15) << name << " " << id << endl;
        cout.unsetf(ios::left);
    }
private:
    T id, name;
};

int main(){
    typedef ID<string> ld;
    typedef multimap<int, ld> M;
    typedef M::value_type v_t;

    M m;
    m.insert(v_t(1,ld("000123","Shevchenko")));
    m.insert(v_t(2,ld("000124","Pushkin")));
    m.insert(v_t(3,ld("000125","Shakespeare")));

    // same key
    m.insert(v_t(3,ld("000126","Smith")));

    M::reverse_iterator lt = m.rbegin();

    while (lt != m.rend()){
        cout.setf(ios::left);
        cout << setw(3) << lt->first;
        lt->second.print();
        lt++;
    }
    return 0;
}

/*
OUTPUT:
    3  Smith           000126
    3  Shakespeare     000125
    2  Pushkin         000124
    1  Shevchenko      000123
*/