변태같은 다차원벡터

multidimensional_vector_prototype.cpp

#include <iostream>
#include <vector>
using namespace std;

template<int>
struct multivector;
template<>
struct multivector<1>
{
	vector<int> vec;
	int& operator[](int n)
	{
		return vec[n];
	}
};
template<int d>
struct multivector
{
	vector<multivector<d-1>> vec;
	void add_row(int n)
	{
		if(n==0)return;
		vec.push_back(multivector<d-1>());
		add_row(n-1);
	}
	multivector<d-1>& operator[](int n)
	{
		return vec[n];
	}
};

int main()
{
	multivector<2> mvec;
	mvec.add_row(2);
	mvec[1].vec.push_back(3);
	cout << mvec[1][0] << endl;
}