Write a program that dynamically allocates an array large enough to hold a userdefined number of test scores. Once all the 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.
Input Validation: Do not accept negative numbers for test scores.
I tried to write it like this and it show me this issue with this program as in line 50 when I compile it, it gave me an error message: expression must have a constant value.
#include <iostream>
#include <iomanip>
usingnamespace std;
//Function prototypes
void arrSelectSort(double *, double);
// passing an array of doubles, not ints!
int main()
{
double *TestScores, //To dynamically allocate an array
total = 0.0, //Accumulator
average; //To hold average test scores
int numTest, //To hold number of test scores
count; //Counter variable
//Get the number of test scores you wish to average and put in order
cout << "How many test scores do you wish ";
cout << "to enter? ";
cin >> numTest;
//Dynamically allocate an array large enough to hold that many scores
TestScores = newdouble[numTest];
//Get the test scores
cout << "Enter the test scores below.\n";
for (count = 0; count < numTest; count++)
{
cout << "Test Score " << (count + 1) << ": ";
cin >> TestScores[count];
}
//Calculate the total test scores
for (count = 0; count < numTest; count++)
{
total += TestScores[count];
}
//Calculate the average test scores
average = total / numTest;
//Display the results
cout << fixed << showpoint << setprecision(2);
cout << "The average of all the test score is " << average << endl;
//Free dynamically allocated memory
delete[] TestScores;
TestScores = 0; //make TestScores point to null
//An array of pointers to int
int *arrPtrTestScores[count];
//Sort the elements of the array of pointers
arrSelectSort(TestScores, TestScores[count]);
//Display the Test Scores in ascending order
cout << "The test scores, sorted in ascending order, are: \n";
return 0;
}
//This function performs an ascending order selection sort
void arrSelectSort(double *arr, int size)
{
int startScan;
double minIndex; // one data type
double minElem; // has to be the same data type
for (startScan = 0; startScan < (size - 1); startScan++)
{
minIndex = startScan;
minElem = arr[startScan];
for (int index = startScan + 1; index < size; index++)
{
if (arr[index] < minElem)
{
minElem = arr[index];
minIndex = index;
}
}
// to cast it~ (int)variable will cast it to an int
arr[(int)minIndex] = arr[startScan];
arr[startScan] = minElem;
}
}
