Are a, &a, *a, a[0], &a[0] and &a[0][0] identical pointers?

Question

I have the following C program:

#include 

int main(){
    int a[2][2] = {1, 2, 3, 4};
    printf(\"a:%p, &a:%p, *a:%p \\n\", a, &a, *         


        

Answer 1

This also means that in C arrays have no overhead. In some other languages the structure of arrays is

&a     -->  overhead
            more overhead
&a[0]  -->  element 0
            element 1
            element 2
            ...

and &a != &a[0]