// This program will input an undetermined number of student names // and a numb

Question

// This program will input an undetermined number of student names
// and a number of grades for each student. The number of grades is
// given by the user. The grades are stored in an array.
// Two functions are called for each student.
// One function will give the numeric average of their grades.
// The other function will give a letter grade to that average.
// Grades are assigned on a 10 point spread.
// 90-100 A 80- 89 B 70-79 C 60-69 D Below 60 F

// PLACE YOUR NAME HERE

#include <iostream>
using namespace std;

const int MAXGRADE = 25; // maximum number of grades per student
const int MAXCHAR = 30; // maximum characters used in a name

typedef char StringType30[MAXCHAR + 1];// character array data type used for names
// having 30 characters or less.
typedef float GradeType[MAXGRADE]; // one dimensional integer array data type

float findGradeAvg(GradeType, int); // finds grade average by taking array of
// grades and number of grades as parameters

char findLetterGrade(float); // finds letter grade from average given
// to it as a parameter

int main()

{
   StringType30 firstname, lastname; // two arrays of characters defined
int numOfGrades; // holds the number of grades
   GradeType grades; // grades is defined as a one dimensional array
   float average; // holds the average of a student's grade
char moreinput; // determines if there is more input

// Input the number of grades for each student

   cout << "Please input the number of grades each student will receive." << endl
       << "This number must be a number between 1 and " << MAXGRADE << " inclusive" << endl;

   cin >> numOfGrades;

   while (numOfGrades > MAXGRADE || numOfGrades < 1)
   {
       cout << "Please input the number of grades for each student." << endl
       << "This number must be a number between 1 and " << MAXGRADE << " inclusive" << endl;

       cin >> numOfGrades;

   }

// Input names and grades for each student

   cout << "Please input a y if you want to input more students"
       << " any other character will stop the input" << endl;
   cin >> moreinput;

   while ( moreinput == 'y' || moreinput == 'Y')
  
   {
cout << "Please input the first name of the student" << endl;
       cin >> firstname;
       cout << endl << "Please input the last name of the student" << endl;
       cin >> lastname;

       for (int count = 0; count < numOfGrades; count++)

       {

           cout << endl << "Please input a grade" << endl;
      
           // Fill in the input statement to place grade in the array

       }

cout << firstname << ' ' << lastname << " has an average of ";
  
       // Fill in code to get and print average of student to screen
       // Fill in call to get and print letter grade of student to screen
  
       cout << endl << endl << endl;
       cout << "Please input a y if you want to input more students"
       << " any other character will stop the input" << endl;
   cin >> moreinput;

   }

   return 0;
}

//***********************************************************************
// findGradeAvg
//
// task: This function finds the average of the
// numbers stored in an array.
//
// data in: an array of integer numbers
// data returned: the average of all numbers in the array
//
//***********************************************************************

float findGradeAvg(GradeType array, int numgrades)

{

// Fill in the code for this function

}

//***********************************************************************
// findLetterGrade
//
// task: This function finds the letter grade for the number
//               passed to it by the calling function
//
// data in: a floating point number
// data returned: the grade (based on a 10 point spread) of the number
// passed to the function
//
//***********************************************************************

char findLetterGrade(float numgrade)

{
  
// Fill in the code for this function

}

Exercise 1: Complete the program by filling in the code. (Areas in bold) Run the program with 3 grades per student using the sample data below Mary Brown 100 90 90 George Smith 90 30 50 Dale Barnes 80 78 82 Sally Dolittle 70 65 80 Conrad Bail 60 58 71 You should get the following results Mary Brown has an average of 93.33 which gives the letter grade of A George Smith has an average of 56.67 Dale Barnes has an average of 80.00 which gives the letter grade of B Sally Dolittle has an average of 71.67 which gives the letter grade of C Conrad Bailer has an average of 63.00 which gives the letter grade of D which gives the letter grade of F

Explanation / Answer

float findGradeAvg(GradeType array, int numgrades)
{
    int sum11= 0 ;
    for(int pos11 = 0;pos11 < numgrades; pos11++)
    {
        sum11 = sum11 + array[pos11];
    }
    return float (sum11) /numgrades;

}

char findLetterGrade(float numgrades)
{
    char grades11;
    if(numgrades >= 90 && numgrades < 100)
    {
        grades11 = 'A';
    }
    else if(numgrades >= 80 && numgrades < 90)
    {
        grades11 = 'B';
    }
    else if(numgrades >= 70 && numgrades < 80)
    {
        grades11 = 'C';
    }
    else if(numgrades >= 60 && numgrades < 70)
    {
        grades11 = 'D';
    }
    else
        grades11 = 'F';

    return grades11;

}

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