#include <stdio.h>
int main() {
int x = 10, y, *z;
y = &x;
z = &y;
printf("%d %d %d", y, z, (*z));
return 0;
}
- The code begins with the inclusion of the
stdio.h
header file, which is necessary to use the printf
function. - The
main
function is defined as the entry point of the program. - A variable
x
is declared and assigned the value 10. - Two pointer variables
y
and z
are declared without initialization. - The address of
x
is assigned to y
using the &
operator. This means y
now points to the memory location where x
is stored. - The address of
y
is assigned to z
. This means z
now points to the memory location where y
is stored. - The
printf
function is used to print the values of y
, z
, and (*z)
. *y
dereferences the pointer y
, giving the value stored at the memory location it points to, which is the value of x
(10).z
dereferences the pointer z
twice, giving the value stored at the memory location z
points to, which is the value of y
(the address of x
).(z)
dereferences the pointer z
once and then dereferences the resulting pointer, giving the value stored at the memory location z
points to, which is the value of x
(10).- Finally, the
main
function returns 0, indicating successful execution of the program.