#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"

void averageAndCountEven(int arr[], int len, double *average, int *count);

void app_main() {
  // Declaring and initializing an integer array
  int arr[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

  // Calculating the length of the array
  //swapped (arr) and arr[0] to find the length of the array by dividing the total size by the bytes of each variable TGH
  int len = sizeof(arr) / sizeof(arr[0]);
 
  // Declaring average and count variables (not pointers TGH)
  double average;
  int count;

  /* Calling averageAndCountEven(), passing the 'arr' array, length of the array'len',
     references to the variables 'average' and 'count', and printing the results */
     //calling properly with & symbols to receive the data from the pointers
  averageAndCountEven(arr, len, &average, &count);
  //made average and count variables because the function is already called above and until changed will display the value of the pointers TGH
  printf("The average of array elements is %f\n", average);
  printf("The count of even numbers in the array is %d\n", count);
}

/************************
   Function    - averageAndCountEven
   Description - calculates the average and count of even numbers in an integer array
   Parameters  - arr[]    - an integer array
                 len      - length of the array arr[] (number of elements in the array)
                 average  - a pointer to store the average
                 count    - a pointer to store the count
   Return type - none
************************/
void averageAndCountEven(int arr[], int len, double *average, int *count) {
  //initializing the pointers to 0
  *average = 0;
  *count = 0;

  //loop through the arr[] using 'len' variable as the limit of the integer 'i'
  //I set up the loop properly using the following to loop I until len is no longer bigger TGH
  for (int i=0; i < len; i++) {
    //calculating the total sum and store it in the pointer 'average'
    *average += arr[i];
    if (arr[i] % 2 == 0) {
      (*count)++;
    }
  }

  //calculate the average and store it in the pointer 'average'
  //average is divided by len and returned to where it gets called TGH
  *average /= len;
}