Need to make this CPP file ask for student name, assignment, and grade. Then when you exit the program it displays the number of students and the mean of all the grades.

here is the code I have so far.

"

#include

#include

#include

#include

#include

#include

using namespace std;

int main()

{

string filename = "students.txt";

cout << "Student File ";

ifstream input_file;

input_file.open(filename);

if (input_file) {

// initialize variables

string student, assignment;

vector students, assignments;

double grade;

vector<double> grades;

cout << "Enter student: ";

cin >> student;

cout << "Enter assignment: ";

cin >> assignment;

cout << "Enter grade: ";

cin >> grade;

students.push_back(student);

assignments.push_back(assignment);

grades.push_back(grade);

char choice;

cout << "Save changes? y/n: ";

cin >> choice;

ofstream output_file;

if (choice = 'y') {

output_file.open(filename);

for (int i = 0; i < students.size(); ++i) {

student = students[i];

assignment = assignments[i];

grade = grades[i];

output_file << student << '\t' << assignment << '\t' << grade << ' ';

}

output_file.close();

cout << "Your changes have been saved. ";

}

else if (choice = 'n')

cout << "Your changes have not been saved! ";

}

input_file.close();

}"