I have to make a program to find student's test scores and etc. I am stumbled on a few problems I can't seem to figure how to implement and create the following functions: (I managed to create a function to get average score of each student)
1. A void function to find the average score for each test and store in an array
testAvgs. (average overall score of each test)
2. A void function to print the average score for each student and the average score for each test, i.e. print the contents of
studentAvgs and
testAvgs. The output will be well formatted and accompanied with appropriate titles for the information printed and for the rows and columns.
3. Add the following declaration in the function main.
"bool passing[MAX_STUDENTS];"
4. Then write a function that initializes all components of the array
passing to
false. The array
passing is a parameter.
"void Initialize(bool passing[],int numberOfStudents)"
5. A function that has
passing ,
studentAvgs, and
numberOfStudents as parameters. Set the components of
passing to
true whenever the corresponding value in
studentAvgs is greater than or equal to 50.0
6. A function that has
passing as parameter and print the number of students who passed, i.e. count and print the number of components in
passing that are
true. Display meaningful messages with appropriate title.
7. A function that has
studentAvgs and
numberOfStudents as parameters, and determine the highest average score of the class. This value will be formatted and printed with an appropriate message.
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#include <iostream> //for cin and cout
#include <iomanip> //better format
#include <conio.h> //for getch
using namespace std;
//constant declarations
const int MAX_STUDENTS = 30; //maximum number of students
const int MAX_TESTS = 10; //maximum number of tests
//function prototypes
void ReadScores(double[][MAX_TESTS],int& , int&);
void PrintScores(const double[][MAX_TESTS], int, int);
void DisplayHeadings();
void AverageScores(const double scores[][MAX_TESTS], int, int, double studentAvgs[]);
int main()
{
//variable declarations
double scores[MAX_STUDENTS][MAX_TESTS]; //array of test scores
int numberOfStudents; //number of students in a class
int numberOfTests; //number of tests written
double studentAvgs[MAX_STUDENTS]; //array for averages of each score
//Main Title/Heading
DisplayHeadings();
//read the each student’s test scores into an array scores
ReadScores(scores, numberOfStudents, numberOfTests);
//print each student’s scores
PrintScores(scores,numberOfStudents,numberOfTests);
//Print average score of each student
AverageScores(scores, numberOfStudents, numberOfTests, studentAvgs);
//End of Program
cout << "End of Program*" << endl;
_getch();
}
//**************************************************************************
// Definition of function DisplayHeadings
// This function prints out a main title/header for the program
//**************************************************************************
void DisplayHeadings()
{
cout << "Student Test Score Toolkit" << endl
<< "--------------------------" << endl;
}
//***************************************************************************
// Definition of function ReadScores
// This function reads each student's test scores into array scores
// The parameter scores is an array to hold numbers between 0 and 100
// entered as test scores.
// The parameter numberOfStudents is a reference parameter to the number of
// students read.
// The parameter numberOfTests is a reference parameter to the number of
// tests read.
//***************************************************************************
void ReadScores(double scores[][MAX_TESTS], //array of test scores
int& numberOfStudents, //number of students read
int& numberOfTests) //number of tests read
{
int student; //row index used for students
int test; //column index used for tests
//prompt for and read the number of students and the number of tests
cout << "Enter the number of students(up to " << MAX_STUDENTS << "): ";
cin >> numberOfStudents;
cout <<"Enter the number of tests(up to " << MAX_TESTS << "): ";
cin >> numberOfTests;
//read the test scores into the array scores
for (student = 0; student < numberOfStudents; student++)
{
cout <<"Enter the " << numberOfTests
<< " test scores for student# " << (student + 1) << endl;
for (test = 0; test < numberOfTests; test++)
cin >> scores[student][test];
}
}
//**************************************************************************
// Definition of function PrintScores
// This function prints each student's test scores
// The parameter scores is an array to hold each student’s test scores
// The parameter numberOfStudents holds the number of students integers
// The parameter numberOfTests holds the number of tests.
//**************************************************************************
void PrintScores( const double scores[][MAX_TESTS],
int numberOfStudents,
int numberOfTests)
{
int student;
int test;
for (student = 0; student < numberOfStudents; student++)
{
cout <<"The test scores for student# " << (student + 1)
<<" are: " << endl;
for (test = 0; test < numberOfTests; test++)
cout << setw(3) << scores[student][test];
cout << endl;
}
}
//**************************************************************************
// Definition of function AverageScores
// This function prints the average score for each student
// The parameter scores is an array to hold each student’s test scores and
// max number of tests.
// The parameter numberOfStudents holds the number of students integers
// The parameter numberOfTests holds the number of tests.
// The parameter studentAvgs holds the average test score of each students
//**************************************************************************
void AverageScores( const double scores[][MAX_TESTS], int numberOfStudents,
int numberOfTests,
double studentAvgs[])
{
double total = 0;
for (int student=0;student<numberOfStudents;student++)
{
total = 0;
{
for (int test=0; test<numberOfTests;test++)
total = total + scores[student][test];
}
studentAvgs[student] = static_cast<double>(total)/numberOfTests;
cout << endl;
cout <<"The Average score for student " << student+1 << " is " << studentAvgs[student] << endl;
}
}
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Thank You
