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#include <iostream>
#include <fstream>
#include <iomanip>
#include <string>
using namespace std;
// Function prototypes
void avgGrd(int, int, int, int, int, double&, string&);
int findLow(int, int, int, int);
int findHigh(int, int, int, int);
int qfAvg(double, int, double&);
void main()
{
// Variable declarations
ifstream inFile;
string lastName, firstName, grade, file;
char end;
int ID, q1, q2, q3, q4, final, count = 0, searchId;
double sum1 = 0, sum2 = 0, sum3 = 0, sum4 = 0, sumFinal = 0, sumAvg = 0;
int q1Count = 0, q2Count = 0, q3Count = 0, q4Count = 0, finalCount = 0, avgCount = 0;
double avg;
double average;
cout << "Enter file name: "; cin >> file;
inFile.open(file + ".txt");
if (!inFile.fail())
{
cout << fixed << setprecision(1);
cout << endl << setw(53) << "Fall 2012 Student Grade Report:" << endl << endl;
cout << "No. ID Last Name First Name Quiz1 Quiz2 Quiz3 Quiz4 Final Avg Grd" << endl;
cout << "------------------------------------------------------------------------------" << endl;
inFile.ignore(80, '\n');
inFile >> ID;
while (!inFile.eof())
{
count++;
inFile >> lastName >> firstName >> q1 >> q2 >> q3 >> q4 >> final;
sum1 += q1; sum2 += q2; sum3 += q3; sum4 += q4; sumFinal += final;
avgGrd(q1, q2, q3, q4, final, average, grade);
sumAvg += average;
cout << right << setw(3) << count << " " << setw(6) << ID << " " << left
<< setw(12) << lastName << " " << left << setw(12) << firstName << " ";
if (q1 > 0)
{
cout <<right << setw(3) << q1;
q1Count++;
}
else
cout << " ";
if (q2 > 0)
{
cout << right << setw(6) << q2;
q2Count++;
}
else
cout << " ";
if (q3 > 0)
{
cout << right << setw(6) << q3;
q3Count++;
}
else
cout << " ";
if (q4 > 0)
{
cout << right << setw(6) << q4;
q4Count++;
}
else
cout << " ";
cout << right << setw(5) << final << right << setw(8) << average << " " << left << setw(7) << grade << endl;
inFile >> ID;
}
inFile.close();
cout << " ----------------------------------------" << endl;
cout << " ";
qfAvg(sum1, q1Count, avg);
cout << setw(6) << avg;
qfAvg(sum2, q2Count, avg);
cout << setw(6) << avg;
qfAvg(sum3, q3Count, avg);
cout << setw(6) << avg;
qfAvg(sum4, q4Count, avg);
cout << setw(6) << avg;
qfAvg(sumFinal, count, avg);
cout << setw(5) << avg;
qfAvg(sumAvg, count, avg);
cout << setw(5) << avg << endl;
cout << "Enter Student ID (999 to end): "; cin >> searchId;
inFile.open(file + ".txt");
inFile.ignore(80, '\n');
while (searchId != 999 && searchId != ID)
{
for (int i = 0; i <= count; i++)
{
inFile >> ID >> lastName >> firstName >> q1 >> q2 >> q3 >> q4 >> final;
if (searchId == ID)
{
avgGrd(q1, q2, q3, q4, final, average, grade);
cout << " " << left << setw(12) << lastName << " " << setw(12) << firstName << ' '
<< setw(3) << average << ' ' << setw(2) << grade << endl;
cout << "Enter Student ID (999 to end): "; cin >> searchId;
}
}
}cout << "Enter any character: "; cin >> end;
}
else
cout << endl << "File Open Failed!" << endl;
}
// Function definitions
void avgGrd(int q1, int q2, int q3, int q4, int final, double& average, string& grade)
{
int low = findLow(q1, q2, q3, q4);
int high = findHigh(q1, q2, q3, q4);
average = ((q1 + q2 + q3 + q4 + final + final) - low + high) / 6.;
if (average >= 96.66)
grade = "A+";
else if (average >= 93.33)
grade = 'A';
else if (average >= 90)
grade = "A-";
else if (average >= 86.66)
grade = "B+";
else if (average >= 83.33)
grade = 'B';
else if (average >= 80)
grade = "B-";
else if (average >= 76.66)
grade = "C+";
else if (average >= 73.33)
grade = 'C';
else if (average >= 70)
grade = "C-";
else if (average >= 66.66)
grade = "D+";
else if (average >= 63.33)
grade = 'D';
else if (average >= 60)
grade = "D-";
else
grade = 'F';
}
int findLow(int q1, int q2, int q3, int q4)
{
int low = q1;
if (q2 < low)
low = q2;
if (q3 < low)
low = q3;
if (q4 < low)
low = q4;
return low;
}
int findHigh(int q1, int q2, int q3, int q4)
{
int high = q1;
if (q2 > high)
high = q2;
if (q3 > high)
high = q3;
if (q4 > high)
high = q4;
return high;
}
int qfAvg(double sum, int Count, double& avg)
{
avg = sum / Count;
return avg;
}
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