#include <iostream>  

using namespace std; 

using std::endl; 

int main() 

{ 

    int A = 0, B = 0, C = 0, D = 0, F = 0; 

    int score[10]; 

    char letters[5] = { 'A', 'B', 'C', 'D', 'F' }; 

    int grade[5] = { 92, 84, 75, 68, 0 }; 

    cout << "\n ************************************************* \n"; 

    for (int i = 0; i < 10; i++) 

    { 

        cout << "\n Enter the test score " << i+1 << ": "; 

        cin >> score[i]; 

    } 

    cout << "\n ************************************************* \n"; 

    int total = 0; 

    for (int i = 0; i < 10; i++) { 

        total += score[i]; 

    } 

    int average = total / 10; 

    for (int i = 0; i < 10; i++) 

    { 

        if (score[i] >= 92) 

            A += 1; 

        if (score[i] >= 84) 

            B += 1; 

        if (score[i] >= 75) 

            C += 1; 

        if (score[i] >= 65) 

            D += 1; 

        if (score[i] < 65) 

            F += 1; 

     

    } 

    int counter = 0; 

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

    { 

        for (int x = 0; x < 10; x++) 

        { 

            if (score[i] >= grade[x]) 

            { 

                score[i] = letters[x]; 

                x = 10; 

            } 

        } 

    } 

    cout << "\n\nThe average of the scores is: " << average << endl; 

    cout << "\n\n *************************************************"; 

    cout << "\n\n Here are the grades and the letter grades: "; 

    for (int i = 0; i < 10; i++) 

    cout << score[i] << "\t\t\t" << letters[i] << endl; 

    cout << "\n The number of each letter grade: " 

        << "\n The number of A's: " << A 

        << "\n The number of B's: " << B 

        << "\n The number of C's: " << C 

        << "\n The number of D's: " << D 

        << "\n The number of F's: " << F; 

    cout << "\n\n *************************************************"; 

   return 0;  

} 

Main: 

#include "Header.h" 

int main() 

{ 

    Input(); 

    Math(); 

    Output(); 

   return 0;  

} 

Functions: 

#include "Header.h" 

#include <iostream>  

using namespace std; 

using std::endl; 

int A = 0, B = 0, C = 0, D = 0, F = 0; 

int total = 0; 

int average = total / 10; 

int score[10]; 

char letters[5] = { 'A', 'B', 'C', 'D', 'F' }; 

int grade[5] = { 92, 84, 75, 68, 0 }; 

void Input() 

{ 

    cout << "\n ************************************************* \n"; 

    for (int i = 0; i < 10; i++) 

    { 

        cout << "\n Enter the test score " << i + 1 << ": "; 

        cin >> score[i]; 

    } 

    cout << "\n ************************************************* \n"; 

} 

void Math() 

{ 

    int total = 0; 

    for (int i = 0; i < 10; i++) { 

        total += score[i]; 

    } 

    int average = total / 10; 

    for (int i = 0; i < 10; i++) 

    { 

        if (score[i] >= 92) 

            A += 1; 

        if (score[i] >= 84 && score[i] < 92) 

            B += 1; 

        if (score[i] >= 75 && score[i] < 84) 

            C += 1; 

        if (score[i] >= 65 && score[i] < 75) 

            D += 1; 

        if (score[i] < 65) 

            F += 1; 

    } 

    int counter = 0; 

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

    { 

        for (int x = 0; x < 10; x++) 

        { 

            if (score[i] >= grade[x]) 

            { 

                score[i] = letters[x]; 

                x = 10; 

            } 

        } 

    } 

} 

void Output() 

{ 

    cout << "\n\nThe average of the scores is: " << average << endl; 

    cout << "\n\n *************************************************"; 

    cout << "\n\n Here are the grades and the letter grades: \n"; 

    for (int i = 0; i < 10; i++) 

        cout << score[i] << "\t\t\t" << letters[i] << endl; 

    cout << "\n The number of each letter grade: " 

        << "\n The number of A's: " << A 

        << "\n The number of B's: " << B 

        << "\n The number of C's: " << C 

        << "\n The number of D's: " << D 

        << "\n The number of F's: " << F; 

    cout << "\n\n *************************************************"; 

} 

Header: 

#ifndef HEADER_H 

#define HEADER_H 

void Input(); 

void Math(); 

void Output(); 

#endif 

 Main.cpp: 

#include "Header.h" 

int main() 

{ 

Math(); 

return 0; 

} 

 

Functions.cpp: 

using namespace std; 

char string_1[] = "Frank"; 

char string_2[] = "Franklyn"; 

void Math() 

{ 

cout << "\n\n ******************************"; 

for (int i = 0; i < 6; i++) 

{ 

if (string_1[i] = string_2[i]) 

string_1[i] = string_2[i]; 

if (string_1[i] != string_2[i]) 

string_1[i] != string_2[i]; 

} 

if (string_1 == string_2) 

cout << "\n Same" 

else 

cout << "\n Different"; 

cout << "\n\n ******************************"; 

} 

 

Intfuctions.h: 

#ifndef HEADER_H 

#define HEADER_H 

void Math(); 

#endif 

 Main: 

#include "intfunctions.h" 

#include <iostream> 

using namespace std; 

int main() 

{ 

char first[8]; 

char last[8]; 

char format[18]; 

cout << "Enter first name: "; 

cin >> first; 

cout << "Enter last name: "; 

cin >> last; 

fun(first, last, format); 

cout << format; 

return 0; 

} 

Functions: 

#include "intfunctions.h" 

#include <iostream> 

#include<string.h> 

char first[8]; 

char last[8]; 

char format[18]; 

void fun(char first[], char last[], char format[]) 

{ 

int i, j = 0; 

for (i = 0; i < strlen(last); i++) 

{ 

format[j++] = last[i]; 

} 

format[j++] = ','; 

format[j++] = ' '; 

for (i = 0; i < strlen(first); i++) 

{ 

format[j++] = first[i]; 

} 

format[j++] = ' '; 

} 

Header: 

#ifndef intfunctions_h 

#define intfunctions_h  

void fun(char first[], char last[], char format[]); 

#endif