#include <stdio.h>
#include <math.h>

int main(void)
{

    int fpArray[100]; // holds day1.txt elements
    int i, new_i;
    int total = 0;

    FILE *fp = fopen("day1.txt","r");

    while (fscanf(fp, "%d", &i) == 1) // fscanf goes through file until EOF, and assign read value to variable &i
    {
        printf("Module mass: %d\n", i);

        while (i >= 0)               // holds true while i (which holds the file contents) hits 0 or a negative number
        {
            new_i = ((i / 3) - 2);   // perform the calculations and store in new int variable
            printf("\tReducing mass from %d to %d\n", i, new_i);
            i = new_i;              // set i to the values inside new_i

            if (i > 0)              // if i is still greater than 0
            {
                for (int x = 0; x < 100; x++)
                {
                    printf("\tx = %d\n", x);     // not exactly sure what this is doing

                    new_i = ((i / 3) - 2);      // this will be performed up to 100 times as long as i > 0
                    printf("\t\tReducing mass from %d to %d\n", i, new_i);
                    i = new_i;                  // same as above

                    printf("\t\tTotal so far is %d, adding %d\n", total, i);
                    total += i;               // maintain total
                }
            }
        }
    }

    printf("%d\n", total);
    return 0;
}