{

( void ) argc;

( void ) argv;

std::multimap<char, int> mymm;

mymm.insert ( std::pair<char, int> ( 'x', 10 ) );

mymm.insert ( std::pair<char, int> ( 'y', 20 ) );

mymm.insert ( std::pair<char, int> ( 'z', 30 ) );

mymm.insert ( std::pair<char, int> ( 'a', 20 ) );

mymm.insert ( std::pair<char, int> ( 'b', 20 ) );

mymm.insert ( std::pair<char, int> ( 'z', 33 ) );

mymm.insert ( std::pair<char, int> ( 't', 50 ) );

mymm.insert ( std::pair<char, int> ( 'z', 40 ) );

auto iter = mymm.begin();

for ( ; iter != mymm.end(); )

{

if ( iter->second == 20 )

mymm.erase ( iter++ );

else

iter++;

}

for ( auto& e : mymm )

std::cout << e.first << " " << e.second << std::endl;

//std::multimap<char, int>::iterator it = mymm.find ( 'z' );

//do

//{

//std::cout << it->first << " " << it->second << std::endl;

//++it;

//}

//while ( it != mymm.end() );

return 0;