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#include<fstream>
#include<string>
#include<iostream>
#include <cmath>
#include <iomanip>
using namespace std;
int main()
{
ifstream sampleGrades("sampleGrades.txt");
ofstream outputGrades("outputGrades.txt");
string firstLine;
int TotalStudents;
int ID = 0;
double Attendance, hw1, hw2, hw3, hw4, hw5, hw6, hw7, exam1, exam2, finalExam;
double GradePercent;
double totalAp = 0, totalA = 0, totalAm = 0, AvgAttendanceA = 0.0;
int countAp = 0, countA = 0, countAm = 0, AcountTot = 0;
double totalBp = 0, totalB = 0, totalBm = 0, AvgAttendanceB = 0.0;
int countBp = 0, countB = 0, countBm = 0, BcountTot = 0;
double totalCp = 0, totalC = 0, totalCm = 0, AvgAttendanceC = 0.0;
int countCp = 0, countC = 0, countCm = 0, CcountTot = 0;
double totalD = 0, AvgAttendanceD = 0.0;
int countD = 0, DcountTot = 0;
double totalF = 0, AvgAttendanceF = 0.0;
int countF = 0, FcountTot = 0;
int NumA = 0;
int NumB = 0;
int NumC = 0;
int NumD = 0;
int NumF = 0;
string LetterGrade = "";
if (sampleGrades.is_open())
{
getline(sampleGrades, firstLine);
sampleGrades >> TotalStudents;
cout << "Number of students: " << TotalStudents << endl;
cout << "Letter Count Avg. Attendance"<< endl;
outputGrades << "ID Course Letter" << endl;
outputGrades << " Grade Grade" << endl;
while (!sampleGrades.eof())
{
sampleGrades >> ID >> Attendance >> hw1 >> hw2 >> hw3 >> hw4 >> hw5 >> hw6 >> hw7 >> exam1 >> exam2 >> finalExam;
LetterGrade = "Error: This is wrong!!";
GradePercent = 100*(Attendance*0.10/25 + (hw1 + hw2 + hw3 + hw4 + hw5 + hw6 + hw7)/700*0.35 + exam1/25*0.15 + exam2/25*0.15 + finalExam/40 * 0.25);
if (GradePercent >= 97 && GradePercent <= 100)
{
LetterGrade = " A+ ";
NumA++;
totalAp += Attendance;
countAp++;
}
else if (GradePercent >= 93 && GradePercent < 97)
{
LetterGrade = " A ";
NumA++;
totalA += Attendance;
countA++;
}
else if (GradePercent >= 90 && GradePercent < 93)
{
LetterGrade = " A- ";
NumA++;
totalAm += Attendance;
countAm++;
}
else if (GradePercent >= 87 && GradePercent < 90)
{
LetterGrade = " B+ ";
NumB++;
totalBp += Attendance;
countBp++;
}
else if (GradePercent >= 83 && GradePercent < 87)
{
LetterGrade = " B ";
NumB++;
totalB += Attendance;
countB++;
}
else if (GradePercent >= 80 && GradePercent < 83)
{
LetterGrade = " B- ";
NumB++;
totalBm += Attendance;
countBm++;
}
else if (GradePercent >= 77 && GradePercent < 80)
{
LetterGrade = " C+ ";
NumC++;
totalCp += Attendance;
countCp++;
}
else if (GradePercent >= 73 && GradePercent < 77)
{
LetterGrade = " C ";
NumC++;
totalC += Attendance;
countC++;
}
else if (GradePercent >= 70 && GradePercent < 73)
{
LetterGrade = " C- ";
NumC++;
totalCm += Attendance;
countCm++;
}
else if (GradePercent >= 60 && GradePercent < 70)
{
LetterGrade = " D ";
NumD++;
totalD += Attendance;
countD++;
}
else if (GradePercent >= 0 && GradePercent < 60)
{
LetterGrade = " F ";
NumF++;
totalF += Attendance;
countF++;
}
outputGrades << ID << setw(8) << setprecision(2) << fixed << GradePercent << setw(8) <<LetterGrade << endl;
AcountTot = countAp + countA + countAm;
BcountTot = countBp + countB + countBm;
CcountTot = countCp + countC + countCm;
DcountTot = countD;
FcountTot = countF;
AvgAttendanceA = (totalAp + totalA + totalAm )/ (countAp + countA + countAm);
AvgAttendanceB = (totalBp + totalB + totalBm) / (countBp + countB + countBm);
AvgAttendanceC = (totalCp + totalC + totalCm) / (countCp + countC + countCm);
AvgAttendanceD = totalD / countD;
AvgAttendanceF = totalF / countF;
}
cout << " A" << setw(10) << AcountTot << setw(8) << AvgAttendanceA << endl;
cout << " B" << setw(10) << BcountTot << setw(10) << setprecision(2) << fixed << AvgAttendanceB << endl;
cout << " C" << setw(10) << CcountTot << setw(10) << AvgAttendanceC << endl;
cout << " D" << setw(10) << DcountTot << setw(10) << AvgAttendanceD << endl;
cout << " F" << setw(10) << FcountTot << setw(10) << AvgAttendanceF << endl;
sampleGrades.close();
outputGrades.close();
}
else
cout << "Unable to open file";
return 0;
}
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