C++ array pointers - An output to explain

Question

Who can explain me why this code outputs 9?

int a[3][4] = {{4,8,13,9}, {1,6,9,3}, {0,2,7,10}};
cout << *(*(a+1)+2);

Answer 1

A pointer to an array points to the first element of the array. Increasing the pointer by 1 will make it point to the second element etc. (*(a+1)) points to 1 (first element of {1,6,9,3} which is the second element in a), the +2 moves the pointer 2 elements further