Answered Essay: You will be creating a program to help a teacher calculate final grades for a class. The program will calculate a final letter gr

You will be creating a program to help a teacher calculate final grades for a class. The program will calculate a final letter grade base on a standard 90/80/70/60 scale. Your program should: – Ask the user how many students, and how many assignments there are – Get student names from the user – Get grades from the user – Calculate final grades – Print the report Requirements: – Must use multidimensional arrays – 2D array to hold student names – 2D array to hold all grades – Array to hold final letter grades Functions (You must fill in the parameters): void getGrades(); void printGrades(); void getStudents(); void printStudents(); void calcGrades(); void printFinalGrades();

Just needs first name should look something like this:

Bob Thomas
100 97
78 92
62 70
B B

Expert Answer

 

#include <iostream>
using namespace std;

// function declarations
void getStudents(string names[], int noOfStuds);
void getGrades(int** grade, int noOfStuds, int noOfTests);
void calcGrades(char gradeletter[], int** grade, int noOfStuds, int noOfTests);
void printStudents(string names[], int noOfStuds);
void printGrades(int** grade, int noOfStuds, int noOfTests);
void printFinalGrades(char gradeletter[], int noOfStuds);

int main()
{

// declaring variables
int noOfStuds, noOfTests;

// getting the inputs entered by the user
cout << “How many students :”;
cin >> noOfStuds;

cout << “How many assignments :”;
cin >> noOfTests;

// creating two dimensional array which stores grades
int** grade;
grade = new int*[noOfStuds];
for (int i = 0; i < noOfStuds; i++)
grade[i] = new int[noOfTests];

// creating array which stores student names
string names[noOfStuds];

// creating array which stores student grade letters
char gradeletter[noOfStuds];

// calling the functions
getStudents(names, noOfStuds);

getGrades(grade, noOfStuds, noOfTests);
calcGrades(gradeletter, grade, noOfStuds, noOfTests);
printStudents(names, noOfStuds);
printGrades(grade, noOfStuds, noOfTests);
printFinalGrades(gradeletter, noOfStuds);
return 0;
}

// This function will get the student names entered by the user
void getStudents(string names[], int noOfStuds)
{

for (int i = 0; i < noOfStuds; i++)
{
cout << “Enter name of student#” << i + 1 << “:”;
cin >> names[i];
}
}

// This function will get the student grades entered by the user
void getGrades(int** grade, int noOfStuds, int noOfTests)
{
for (int i = 0; i < noOfStuds; i++)
{
cout << “Student #” << i + 1 << “:” << endl;

for (int j = 0; j < noOfTests; j++)
{
cout << “Enter score of student” << j + 1 << “:”;
cin >> grade[i][j];
}
}
}

// This function will calculate the grade letter
void calcGrades(char gradeletter[], int** grade, int noOfStuds, int noOfTests)
{
double tot = 0.0, avg = 0.0;

for (int i = 0; i < noOfStuds; i++)
{
for (int j = 0; j < noOfTests; j++)
{
tot += grade[i][j];
}
avg = tot / noOfTests;
if (avg >= 90)
{
gradeletter[i] = ‘A’;
}
else if (avg >= 80 && avg < 90)
{
gradeletter[i] = ‘B’;
}
else if (avg >= 70 && avg < 80)
{
gradeletter[i] = ‘C’;
}
else if (avg >= 60 && avg < 70)
{
gradeletter[i] = ‘D’;
}
else if (avg >= 0 && avg < 60)
{
gradeletter[i] = ‘F’;
}
tot = 0.0;
}
}

// This function will display student names
void printStudents(string names[], int noOfStuds)
{
for (int i = 0; i < noOfStuds; i++)
{
cout << names[i] << “t”;
}
cout << endl;
}

// This function will display student grades
void printGrades(int** grade, int noOfStuds, int noOfTests)
{
for (int i = 0; i < noOfTests; i++)
{
for (int j = 0; j < noOfStuds; j++)
{
cout << grade[j][i] << “t”;
}
cout << endl;
}
}

// This function will display student grade letters
void printFinalGrades(char gradeletter[], int noOfStuds)
{
for (int i = 0; i < noOfStuds; i++)
{
cout << gradeletter[i] << “t”;
}
cout << endl;
}

____________________

Output:

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