C++ Programming...

Add the following functions:

void PrintStudentInfoRange(const int iMinScore, const int iMaxScore, Student students[], const int iSize) - To the caller this function will print just like "PrintStudentInfo()" but will take 2 additional parameters that the caller needs to specify to restrict the range of student data to the scores that are in between (and including) "iMinScore" and "iMaxScore". For the implementation the function is finding the Student structures that fall within the range and then handing them off to "PrintStudentInfo()" to do the printing.

const float GetAverageGrade(Student students[], const int iSize) - This function returns the average of all of the student grades.

// Write a program that reads student names from a file followed by their

test scores.

// The program should then output each students name followed by the test

score and the relevant grade.

// It should also print the highest test score and the name of students

having the highest test scores.

//

//Specifically, write a code to :

// Read from the file (inData.txt) and store in a struct variable of

type studentType,

// which has four components : studentFName, and studentLName of type

string,

// testScore of type int(between the range of 0 and 100), and grade of

type char.

//

// Assume the class has 20 students. Use any array of 20 components of

type studenetType.

//

// Your program should contain the definition of the following functions :

//

// function to read the students data into the array

// function to assign the relevant grade to each student

// function to find the highest test score

// function to print the name of the students having the highest test

score.

//

#include "stdafx.h"

#include

#include

#include

#include

#include

#include

using namespace std;

const int STUDENTS = 20;

//////////////////////////////////////////////////////////////////////////

/////

struct Student

{

string sStudentFName;

string sStudentLName;

int iTestScore;

char cGrade;

};

//////////////////////////////////////////////////////////////////////////

/////

bool ReadStudentData(string sFileName, Student students[], const int

iSize)

{

ifstream iFile(sFileName);

if (!iFile)

{

cout << "Please specify a file name." << endl;

system("PAUSE");

return 1;

}

int iCount = 0;

while (!iFile.eof() && iCount < STUDENTS)

{

iFile >> students[iCount].sStudentFName;

iFile >> students[iCount].sStudentLName;

iFile >> students[iCount].iTestScore;

iCount++;

}

iFile.close();

return true;

}

//////////////////////////////////////////////////////////////////////////

/////

void AssigneGrade(Student students[], const int iSize)

{

for (int i = 0; i < iSize; i++)

{

if (students[i].iTestScore > 89)

{

students[i].cGrade = 'A';

}

else if (students[i].iTestScore > 79)

{

students[i].cGrade = 'B';

}

else if (students[i].iTestScore > 69)

{

students[i].cGrade = 'C';

}

else if (students[i].iTestScore > 59)

{

students[i].cGrade = 'D';

}

else

{

students[i].cGrade = 'E';

}

}

}

//////////////////////////////////////////////////////////////////////////

/////

Student GetStudentHighestScore(Student students[], const int iSize)

{

int iHighestIndex = 0;

int iHighestScore = 0;

for (int i = 0; i < iSize; i++)

{

if (students[i].iTestScore > iHighestScore)

{

iHighestScore = students[i].iTestScore;

iHighestIndex = i;

}

}

return students[iHighestIndex];

}

//////////////////////////////////////////////////////////////////////////

/////

void PrintHeading(string sTitle)

{

/// Print header....

cout << endl << endl;

cout << sTitle << endl;

cout << left << setfill(' ') << setw(16);

cout << "Name:";

cout << left << setfill(' ') << setw(9);

cout << "Score:";

cout << "Grade:" << endl;

cout << left << setfill('-') << setw(30) << '-' << endl;

}

//////////////////////////////////////////////////////////////////////////

/////

void PrintStudentInfo(Student students[], const int iSize)

{

/// Get the longest student name (first and last).

static size_t iLongestFullName = 0;

for (int i = 0; i < iSize; i++)

{

string sFullName = students[i].sStudentFName + ", " +

students[i].sStudentLName;

if (iLongestFullName < sFullName.length())

iLongestFullName = sFullName.length();

}

/// Print the scores....

for (int i = 0; i < iSize; i++)

{

string sFullName = students[i].sStudentFName + ", " +

students[i].sStudentLName;

cout << left << setfill('.') << setw(16);

cout << sFullName;

cout << students[i].iTestScore;

cout << right << setfill('.') << setw(8);

cout << students[i].cGrade;

cout << endl;

}

}

//////////////////////////////////////////////////////////////////////////

/////

void PrintStudentInfoRange(const int iMinScore, const int iMaxScore,

Student students[], const int iSize)

{

// Happy code goes here....

}

//////////////////////////////////////////////////////////////////////////

/////

const float GetAverageScore(Student students[], const int iSize)

{

// Happy code goes here....

}

//////////////////////////////////////////////////////////////////////////

/////

int main(int argc, char *argv[])

{

if (argc < 2)

{

cout << "Please specify a file name." << endl;

system("PAUSE");

return 1;

}

//////

Student Students[STUDENTS] = {};

if (ReadStudentData(argv[1], Students, STUDENTS) == false)

{

cout << "Error with ReadStudentData." << endl;

system("PAUSE");

return 1;

}

AssigneGrade(Students, STUDENTS);

Student StudentHighestScore = GetStudentHighestScore(Students,

STUDENTS);

PrintHeading("All Students");

PrintStudentInfo(Students, STUDENTS);

PrintHeading("High Score Student");

PrintStudentInfo(&StudentHighestScore, 1);

PrintHeading("Range Test \"A's\"");

PrintStudentInfoRange(90, 100, Students, STUDENTS);

PrintHeading("Range Test \"B's\"");

PrintStudentInfoRange(80, 89, Students, STUDENTS);

PrintHeading("Range Test \"C's\"");

PrintStudentInfoRange(70, 79, Students, STUDENTS);

PrintHeading("Range Test \"D's\"");

PrintStudentInfoRange(60, 69, Students, STUDENTS);

PrintHeading("Range Test \"E's\"");

PrintStudentInfoRange(0, 59, Students, STUDENTS);

cout << endl << "The average score is " << fixed << setprecision(2)

<< GetAverageScore(Students, STUDENTS) << endl;

system("PAUSE");

return 0;

}