Help on Multi Dimensional array in c++

Question

I dont understand Multi Dimensional array in c++ can any help
example : int x [2][3]={{2,3,4}, {8,9,10}};
cout << x [2][2] << endl;
output : 2686816
How it works? ???!!

Answer 1

arrays start at 0 when referencing them.

Answer 2

there is not data at [2][2].. well nothing you placed there.