Question

I was wondering how do I retrieve the value of a multi map in C++

Answer 1

Multimap has internal structure represented as std::pair<T_k, T_v>. It has first, second members. first is the key and second is the value associated with the key.

#include <iostream>
#include <map>

using namespace std;

int main(){

        multimap<int,int> a;
        a.insert(pair<int,int> (1,2));
        a.insert(pair<int,int> (1,2));
        a.insert(pair<int,int> (1,4));
        for (multimap<int,int>::iterator it= a.begin(); it != a.end(); ++it) {
                cout << it->first << "\t" << it->second << endl ;
        }

        return 0;
}

Output :

1 2
1 2
1 4