[Solved] How can I fix this error in my code for an assignment?

by


I eventually figured this one out. Here’s the code I came up with:

/***********************************************************************
* Program:
*    Assignment 31, Array Design
*    Sister Unsicker, CS124
* Author:
*    Lanie Molinar
* Summary:
*    This program gets 10 grades from the user, averages them, and displays 
*    the result. It doesn't count -1 as a completed assignment, so it won't 
*    count it when it computes the average.
*
*    Estimated:  2.0 hrs
*    Actual:     4.0 hrs
*      I had a lot of trouble making my code pass all 3 tests in testbed. I 
*      kept failing at least one every time. After working on it for a while,
*      though, I finally got it working.
************************************************************************/

#include <iostream>
using namespace std;

#define NUMGRADES 10

/***********************************************************************
* The function getGrades gets 10 grades from the user, passing them to main().
***********************************************************************/
void getGrades(int grades[], int num)
{
   for (int i = 0; i < num; i++)
   {
      cout << "Grade " << i + 1 << ": ";
      cin >> grades[i];
   }
   return;
}

/***********************************************************************
* The function averageGradesGrades averages the grades inputted by the user
* and returns that value to main(). It doesn't count -1's as completed 
* assignments, and if the user enters -1 for all grades, it outputs dashes 
* instead of the average.
***********************************************************************/
void averageGrades(int grades[], int num)
{
   int sum = 0;
   int notCompleted = 0;
   int average;
   for (int i = 0; i < num; i++)
   {
      if (grades[i] != -1)
         sum += grades[i];
      else
         notCompleted++;
   }
   if (sum != 0)
      average = sum / (num - notCompleted);
   if (notCompleted != num)
      cout << average;
   else
      cout << "---";
}

/**********************************************************************
*    The main function calls getGrades and averageGrades and displays the
*   result returned by averageGrades.
***********************************************************************/
int main()
{
   int grades[NUMGRADES];
   getGrades(grades, NUMGRADES);
   cout << "Average Grade: ";
   averageGrades(grades, NUMGRADES);
   cout << "%\n";
   return 0;
}

solved How can I fix this error in my code for an assignment?