#include int main() { int x = 10, *y, **z; y = &x z = &y printf(""%d %d %d"", *y, **z, *(*z)); return 0; }

#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.