#include

#include

using namespace std;

int main(void) {

const int NUM_ASSIGNMENT = 10;

const int NUM_STUDENTS = 30;

int numOfAssignments = 0;

int numOfStudents;

int assignments[NUM_STUDENTS][NUM_ASSIGNMENT];

string studentNames[NUM_STUDENTS];

string assignmentNames[NUM_ASSIGNMENT];

cout

cin >> numOfStudents;

if (numOfStudents > 30) {

numOfStudents = 30;

cout

}

for (int i = 0; i

cout

cin >> studentNames[i];

}

char command_choice = ' ';

while (command_choice != 'q') {

system("CLS");

// Output ggradebook

cout

for (int i = 0; i

cout

}

cout

for (int i = 0; i

cout

if (studentNames[i].size()

cout

}

for (int j = 0; j

cout

}

cout

}

cout

cin >> command_choice;

system("CLS");

string input_name;

switch (command_choice) {

case 's':

cout

cin >> studentNames[numOfStudents];

for (int i = 0; i

cout

cin >> assignments[numOfStudents][i];

}

numOfStudents++;

break;

case 'a'://checking the condition of nnumber of assignment

if (numOfAssignments

cout

cin >> assignmentNames[numOfAssignments];

for (int i = 0; i

cout

cin >> assignments[i][numOfAssignments];

}

numOfAssignments++;

}

else {

cout

}

break;

case 'e':

cout

cin >> input_name;

//find the index of the student in the 2d array of assignments and stored it in row variable

int row, col;

for (int i = 0; i

{

if (studentNames[i] == input_name) {

row = i;

break;

}

}

cout

cin >> input_name;

//find the index of the student in the 2d array of assignments and stored it in col variable

for (int i = 0; i

{

if (assignmentNames[i] == input_name) {

col = i;

break;

}

}

int new_value;

cout

cin >> new_value;

assignments[row][col] = new_value;

break;

case'c': {int assignmentToCurve = -1;

cout

cin >> assignmentToCurve;

//adjust for arrays starting at 0;

assignmentToCurve--;

int sum = 0;

for (int i = 0; i

sum += assignments[i][assignmentToCurve];

}

float average = (float)sum / numOfStudents;

if (average

for (int i = 0; i

assignments[i][assignmentToCurve] += (70 - average);

}

cout

}

break;

}

case'q':break;

default:

cout

break;

}

}

return 0;

}

In this quest, you are going to modify quest 5 so that it saves your class roster to a file and can load from that file. 1. When you first start the program you should ask if they want to load a file or enter new information! Do not ask for a file name. The file name should be hard coded into your program! o 2. Remember that Quest 5 had you first ask for input. When the program comes up the user should have the option of loading from a file or manually input a new class. o If the user chooses to load from a file, but there is no file available, it should output a message saying as much and revert to manual input. 3. When the user chooses the quit menu item the current grade book should be saved to the file