// C++ code to demonstrate 2D vector
#include <iostream>
#include <vector> // for 2D vector
using namespace std;
// Driver Code
int main()
{
// Initializing 2D vector "vect" with
// values
vector<vector<int> > vect{ { 1, 2, 3 },
{ 4, 5, 6 },
{ 7, 8, 9 } };
// Displaying the 2D vector
for (int i = 0; i < vect.size(); i++) {
for (int j = 0; j < vect[i].size(); j++)
cout << vect[i][j] << " ";
cout << endl;
}
return 0;
}