# include < iostream >
# include < map >
#include < utility >
int main()
{
	std::map < std::string, int > m;
	std::map < std::string, int > ::const_iterator i;
	m[0] = 0;
	m[1] = 1;
	m[4] = 4;
	m[5] = 5;
	i = m.lower_bound(2);
	if (i != m.end())
	{
		std::cout << i->second << std::endl; // 4
	}
	i = m.lower_bound(1);
	if (i != m.end())
	{
		std::cout << i->second << std::endl; // 1
	}
	system("pause");
	return 0;
}