#include <stdio.h>
#include <stdlib.h>

int main() {
    int size1, size2;

    size1 = 7;
    size2 = 10;

    printf("Address of size1: %d\n", &size1);
    printf("Address of size2: %d\n", &size2);

    printf("\n\n");

    int *ptr;
    ptr = &size1;
    printf("ptr = %d\n", ptr);

    printf("\n\n");

    printf("Value of size1: %d\n", size1);
    printf("Value of size2: %d\n", size2);
    printf("Value of *ptr: %d\n", *ptr);

    printf("\n\n");

    // MALLOC

    /*
        malloc(size);
    */

    printf("sizeof(int): %d\n", sizeof(int));

    int *mal;
    mal = malloc(sizeof(int) * 3); // mal is now 12 bytes

    printf("\n\n");

    int i;
    for(i = 0; i < 3; i++) {
        scanf("%d", mal+i);

        /*
            i = 0;
            mal+i = mal+0 = mal

            i = 1;
            mal+i = mal+1
        */
    }

    printf("mal: %d\n", *mal);
    printf("mal+1: %d\n", *(mal+1));
    printf("mal+2: %d\n", *(mal+2));

    printf("\n\n");

    printf("mal address: %d\n", mal);
    printf("mal+1 address: %d\n", mal+1);
    printf("mal+2 address: %d\n", mal+2);


    return 0;
}