#include <memory>
#include "boost/shared_ptr.hpp"

#include <boost/lambda/lambda.hpp>
#include <boost/lambda/bind.hpp>

//using namespace boost::lambda;
//using namespace std;

int main()
{
	std::vector<std::vector<std::string> > as;
	std::max_element(as.begin(), as.end(), boost::lambda::bind(&std::vector<std::string>::size, boost::lambda::_1) < boost::lambda::bind(&std::vector<std::string>::size, boost::lambda::_2));
}