#include <stdio.h>

double calcAverage(int grades[], int numGrades);

int main()
{

   const int MAX_STUDENTS = 100;
   const int PASS_LEVEL = 70;
   int grades[] = {42, 11, 100, 93, 70};
   int numGrades = 5;

   printf("the number of grades is %d\n", numGrades);
  
   for (int i = 0; i < numGrades; i++) {
      printf("%d - %d  ",i, grades[i]);

      if (grades[i] >= PASS_LEVEL)
         printf("passing\n");
      else
         printf("failing\n");
   }

   double average = calcAverage(grades,numGrades);
 
   printf ("the average is %f\n", average);

   printf("Hello everyone!\n");

   return 0;
}

//documentation goes here
double calcAverage(int grades[], int numGrades)
{
   double average;  
   int total = 0;

   for (int i = 0; i < numGrades; i++)
      total = total + grades[i];

   average = total / (double)numGrades;

   return average;
}