// 24T2 COMP1511 Week 5 Lecture 2
// Tammy Zhong

#include <stdio.h>

int main(void) {

    // Delcare and initialise a normal int variable `num`
    // TODO
    int num = 8; 

    // Declare a pointer variable `num_ptr` and assign the address of `num` to it
    // TODO
    int *num_ptr = &num; // address of `num`

    // Print them out
    // TODO
    printf("The address that num_ptr is storing: %p (num_ptr) %p (&num), with the value of %d\n", num_ptr, &num, *num_ptr);

    // Dereference the pointer `num_ptr` and print it out
    printf("The address of where the num_ptr variable is: %p\n", &num_ptr);

    // Print the pointer variable's address
    // TODO    

    // Modifying pointer values
    // TODO
    printf("num: %d\n", num);// 8
    *num_ptr = 24;
    printf("num: %d\n", num);

    int *num_ptr2 = num_ptr; // make num_ptr2 point to where num_ptr is pointing at

    *num_ptr2 = 10;
    printf("num: %d\n", num);

    int num2 = 4;
    num_ptr = &num2;
    printf("*num_ptr %d\n", *num_ptr);

    return 0;     
}