so the program needs to dynamically allocate an array large enough to hold a user=defined number of test scores. once all scores are entered, the array should be passed to a function that sorts them in ascending order. another function should be called that calculates the average score. the program should display the sorted list of scores and averages with appropriate headings. use pointer notation rather than array notation whenever possible.
the problem i am having is making it so that the program doesn't accept negative numbers for test scores.
errors -
Error C4716 'showAverage': must return a value ConsoleApplication9 c:\users\kenny\desktop\kenny_fepc1.cpp 85
Warning C4101 'average': unreferenced local variable ConsoleApplication9 c:\users\kenny\desktop\kenny_fepc1.cpp 12
please help fix. thank you.
here is the code.
#include <iostream>
#include <iomanip>
using namespace std;
void arrSelectSort(double *, int);
void showArrPtr(double *, int);
double showAverage(double, int);
int main()
{
double *scores, //To dynamically allocate an array
total = 0.0,
average;
//Accumulator
//To hold the averge scores
int numScores; //To hold the number of test scores
//Get the number of test scores.
cout << "How many test scores would you like to process?";
cin >> numScores;
//Dynamically allocate an array large enough to hold that many
//test scores
scores = new double[numScores];
if (scores == NULL)
return 0;
//Get the test score for each test
cout << "Enter the test scores below.\n";
for (int count = 0; count < numScores; count++)
{
cout << "Test score #" << (count + 1) << ": ";
cin >> scores[count];
while (scores[count] <= 0)
{
cout << "Zero or negative numbers not accepted.\n";
cout << "Test Score #" << (count + 1) << ": ";
cin >> scores[count];
}
}
//Calculate the total scores
for (int count = 0; count < numScores; count++)
{
total += scores[count];
}
//sort the elements of the array pointers
arrSelectSort(scores, numScores);
cout << "The test scores in ascending order are: \n";
showArrPtr(scores, numScores);
showAverage(total, numScores);
delete[] scores;
return 0;
}
void totalaverage(double *, int)
{
}
void arrSelectSort(double *array, int size)
{
int startScan, minIndex;
double minElem;
for (startScan = 0; startScan < (size - 1); startScan++)
{
minIndex = startScan;
minElem = array[startScan];
for (int index = startScan + 1; index < size; index++)
{
if (array[index] < minElem)
{
minElem = array[index];
minIndex = index;
}
}
array[minIndex] = array[startScan];
array[startScan] = minElem;
}
}
void showArrPtr(double *array, int size)
{
for (int count = 0; count< size; count++)
cout << array[count] << " ";
cout << endl;
}
double showAverage(double total, int numScores)
{
double average;
//Calculate the average
average = total / numScores;
//Display the results.
cout << fixed << showpoint << setprecision(2);
cout << "Average Score: " << average << endl;
system("pause");
}