multimap test insert and iterating

multimap_test.cpp

#include <iostream>
#include <map>

using namespace std;

int main(void) {
    multimap<int, int> mm;
    for(int i = 20; i; i--)
        mm.insert(make_pair((i * 3) & 7 + i, (i * 5) & 7));
    multimap<int, int>::iterator it = mm.begin();
    while(it != mm.end()) {
        pair<int, int> p = *it;
        cout << "k: " << p.first << ", v: " << p.second << endl;
        it++;
    }
}