#include <iostream>
#include <map>

using namespace std;

int main()
{
  
  typedef multimap< int, double, less< int > > mmid;
  mmid pairs;

  // count() returns # of elements in multimap where
  // the key is 15
  cout << "There are currently " << pairs.count( 15 )
       << " pairs with key 15 in the multimap\n";
  pairs.insert( mmid::value_type( 15, 2.7 ) );
  pairs.insert( mmid::value_type( 15, 99.3 ) );
  cout << "After inserts, there are "
       << pairs.count( 15 )
       << " pairs with key 15\n";
  pairs.insert( mmid::value_type( 30, 111.11 ) );
  pairs.insert( mmid::value_type( 10, 22.22 ) );
  pairs.insert( mmid::value_type( 25, 33.333 ) );
  pairs.insert( mmid::value_type( 20, 9.345 ) );
  pairs.insert( mmid::value_type( 5, 77.54 ) );
  cout << "Multimap pairs contains:\nKey\tValue\n";
  
  for ( mmid::const_iterator iter = pairs.begin();
	iter != pairs.end(); ++iter )
    
    cout << iter->first << '\t'
	 << iter->second << '\n';

  cout << endl;
  return 0;
}