In C++

can you help me change stuct to class on the code provided below thank you

#include

#include

#include

#include

#include

#include

#include

#include

using namespace std;

const unsigned NumberOfStudents = 55;

const unsigned PointsPossible = 400;

const unsigned NumberOfAssignments = 10;

const unsigned NumberOfExercises = 10;

struct Student

{

int id;

string name;

int exercise[NumberOfExercises];

int assignment[NumberOfAssignments];

int midterm;

int final;

int codelab;

int exerciseTotal;

int assignmentTotal;

int totalPoints;

int percent;

string grade;

};

void getStudentDataFromFile(Student S[], string name);

void determineGrades(Student S[]);

void sort(Student S[]);

void printStudentDataToFile(Student S[], string name);

int main()

{

string InputFilename = "in.txt";

string OutputFilename = "out.txt";

Student students[NumberOfStudents];

getStudentDataFromFile(students, InputFilename);

determineGrades(students);

sort(students);

printStudentDataToFile(students,OutputFilename);

}

void getStudentDataFromFile(Student S[], string name)

{

fstream fin;

fin.open(name);

if (!fin)

{

cout << "Unable to open file " << endl;

}

else

{

string dummyline;

getline(fin, dummyline); //this is for ignoring the title line

while (!fin.eof())

{

for (int i = 0; i < NumberOfStudents; i++) {

fin >> S[i].id;

fin >> S[i].name;

string last = " ";

while (true) {

fin >> last;

if (isdigit(last[0])) {

break;

}

S[i].name += " " + last;

}

S[i].exercise[0] = stoi(last);

S[i].exerciseTotal = S[i].exercise[0];

for (int j = 1; j < NumberOfExercises; j++)

{

fin >> S[i].exercise[j];

S[i].exerciseTotal += S[i].exercise[j];

}

S[i].assignmentTotal = 0;

for (int k = 0; k < NumberOfAssignments; k++)

{

fin >> S[i].assignment[k];

S[i].assignmentTotal += S[i].assignment[k];

}

// drop

int temp = S[i].assignment[0];

for (int l = 0; l < NumberOfAssignments; l++) {

if (temp > S[i].assignment[l])

{

temp = S[i].assignment[l];

}

}

S[i].assignmentTotal -= temp;

fin >> S[i].midterm;

fin >> S[i].final;

fin >> S[i].codelab;

S[i].totalPoints = S[i].exerciseTotal + S[i].assignmentTotal+ S[i].codelab + S[i].final + S[i].midterm;

S[i].percent = 100 * S[i].totalPoints / PointsPossible;

}

}

}

}

void determineGrades(Student S[])

{

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

{

int sum = S[i].percent;

if (sum >= 97)

S[i].grade = "A+";

else if (sum >= 93 )

S[i].grade = "A";

else if (sum >= 90 )

S[i].grade = "A-";

else if (sum >= 87 && sum < 90)

S[i].grade = "B+";

else if (sum >= 83 && sum < 87)

S[i].grade = "B";

else if (sum >= 80 && sum < 82)

S[i].grade = "B-";

else if (sum >= 77 && sum < 80)

S[i].grade = "C+";

else if (sum >= 73 && sum < 77)

S[i].grade = "C";

else if (sum >= 70 && sum < 72)

S[i].grade = "C-";

else if (sum >= 67 && sum < 70)

S[i].grade = "D+";

else if (sum >= 63 && sum < 67)

S[i].grade = "D";

else if (sum >= 60 && sum < 62)

S[i].grade = "D-";

else

S[i].grade = "F";

}

}

void sort(Student S[])

{

for(int i=0; i

{

for(int j=i+1; j

{

if(S[i].totalPoints < S[j].totalPoints)

{

Student tmp = S[i];

S[i] = S[j];

S[j] = tmp;

}

}

}

}

void printStudentDataToFile(Student S[], string name)

{

ofstream fout;

fout.open(name);

if (!fout)

{

cout << "Unable to open file " << endl;

}

else

{

fout << "Stud Id Name Ex Ass Mi Fin CL Tot Pct Gr ";

fout << "-------- ------------------- -- --- -- --- -- --- --- -- ";

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

{

fout << setw(8) << setfill('0') << right << student[i].id << ' '

<< setfill(' ') << left << setw(19) << student[i].name

<< right << setw(3) << student[i].exerciseTotal

<< setw(4) << student[i].assignmentTotal

<< setw(3) << student[i].midterm

<< setw(4) << student[i].final

<< setw(3) << student[i].codelab

<< setw(4) << student[i].totalPoints

<< setw(4) << student[i].percent

<< ' ' << student[i].grade

<< endl;

}