#include <iostream>
#include <vector>
#include <map>
#include <string>

int main ()
{

	std::map<std::string, std::vector<float> > m_data;
	std::vector<float>        m_mass{1.0,3.0,5.0,7.0};
	std::vector<float>        m_velocity{1.0,3.0,5.0,7.0};
	std::vector<unsigned int> m_charge{2,4,6,8};
	m_data.insert(std::make_pair("mass",    m_mass) );
	m_data.insert(std::make_pair("velocity",m_velocity) );
	m_data.insert(std::make_pair("charge",  std::vector<float>(
												m_charge.begin(), m_charge.end())) );
	for(const auto p: m_data) {
		std::cout << p.first << ": ";
		for(const auto& n: p.second)
			std::cout << n << ' ';
		std::cout << '\n';
	}
}