// Week 3 Thursday Lecture
// Demonstration of arrays
// 
#include <stdio.h>

#define DAYS_IN_WEEK 7

int main(void) {                         
    int chocolate_eating[DAYS_IN_WEEK] = {4, 2, 5, 2, 0, 3, 1};
    // How do we print the element at index 1 and what will that print?
    printf("%d\n", chocolate_eating[1]);

    // What if we print element at index 7?
    //printf("%d\n", chocolate_eating[7]);

    // How can I get the sum of the first and last element
    int sum = chocolate_eating[0] + chocolate_eating[DAYS_IN_WEEK-1];
    printf("sum is %d\n", sum);
   
    // How can I modify the middle element and make it 99?
    chocolate_eating[DAYS_IN_WEEK/2] = 99;

    // How can I print out all data? (check bounds)
    int i = 0;
    while (i < DAYS_IN_WEEK) {
        printf("%d ",chocolate_eating[i]);
        i++;
    }
    printf("\n");

    printf("Enter a number:\n");
    // How can I read in a number from a user to store as 
    // the second last element?
    scanf("%d", &chocolate_eating[DAYS_IN_WEEK-2]);

    // How can I print out all data? (check bounds)
    i = 0;
    while (i < DAYS_IN_WEEK) {
        printf("%d ",chocolate_eating[i]);
        i++;
    }
    printf("\n");
    return 0;
}