2차원벡터 출력

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;


int main() {
	vector<vector<int>> v = { {1,2},{4,5},{5,6} };
	for (int i = 0; i < 3; i++) {
		for (int j = 0; j < 2; j++) {
			cout << (*(v.begin() + i))[j];
		}
	}
}