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

#include <stdio.h>

#define MAX_LEN 5

void square_array(int nums[MAX_LEN], int length); 
void print_array(int nums[MAX_LEN], int length);

int main(void) {
    int nums[MAX_LEN] = {1, 2, 3, 4, 5};


    printf("address of the beginning of the array %p %p\n", nums, &nums[1]);
    // printf("Before square_array: \n");
    // print_array(nums, MAX_LEN);

    // square_array(nums, MAX_LEN);

    // printf("After square_array: \n");
    // print_array(nums, MAX_LEN);

    // DEMO:
    // int array[MAX_LEN] = {0};

    // int i = 0;
    // while (i < MAX_LEN) {
    //     printf("Address of array[%d] = %p\n", i, &array[i]);
    //     i++;
    // }

    // // array decaying to a pointer
    // printf("The address of array is: %p\n", array);

    // /* extra */
    // int *array_ptr = array;
    // printf("array_ptr[0]: %d\n", array_ptr[0]);

    return 0;
}

void square_array(int nums[MAX_LEN], int length) {
    int i = 0;
    while (i < length) {
        nums[i] = nums[i] * nums[i];
        i++;
    }
}

void print_array(int nums[MAX_LEN], int length) {
    int i = 0;
    while (i < length) {
        printf("%d ", nums[i]);
        i++;
    }
    printf("\n");
}