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  1. #include <pch.h>
  2. #include <iostream>
  3. #include <string>
  4. #include <fstream>
  5. #include <iomanip>
  6.  
  7. using namespace std;
  8.  
  9. const int NO_OF_STUDENTS = 20;
  10.  
  11. struct studentType
  12. {
  13.     string studentFName;
  14.     string studentLName;
  15.     int testScore;
  16.     char grade;
  17. };
  18.  
  19. void getData(ifstream& inFile, studentType sList[], int listSize);
  20. void calculateGrade(studentType sList[], int listSize);
  21. int highestScore(const studentType sList[], int listSize);
  22. void printResult(ofstream& outFile, const studentType sList[], int listSize);
  23.  
  24. int main()
  25. {
  26.     ifstream inData;
  27.     ofstream outData;
  28.     studentType studentList[NO_OF_STUDENTS];
  29.  
  30.     // Open input file
  31.     inData.open("Ch9_Ex2Data.txt");
  32.     if (!inData)
  33.     {
  34.         cout << "The input file does not exist. Program terminates!"
  35.             << endl;
  36.         return 1;
  37.     }
  38.  
  39.     // Open output file
  40.     outData.open("Ch9_Ex2Out.txt");
  41.     if (!outData)
  42.     {
  43.         cout << "Cannot open the output file. Program terminates!"
  44.             << endl;
  45.         return 1;
  46.     }
  47.  
  48.     // TODO
  49.     getData(inData, studentList, 20);
  50.     calculateGrade(studentList, 20);
  51.     printResult(outData, studentList, 20);
  52.     return 0;
  53. }
  54.  
  55. void getData(ifstream& inFile, studentType sList[], int listSize)
  56. {
  57.     for (int i = 0; i < listSize; i++)
  58.         inFile >> sList[i].studentFName >> sList[i].studentLName
  59.         >> sList[i].testScore;
  60. }
  61.  
  62. void calculateGrade(studentType sList[], int listSize)
  63. {
  64.     //Done
  65.     {
  66.  
  67.         for (int i = 0;i < NO_OF_STUDENTS; i++)
  68.             if (sList[i].testScore < 60)
  69.                 sList[i].grade = 'F';
  70.             else if (sList[i].testScore < 70)
  71.                 sList[i].grade = 'D';
  72.             else if (sList[i].testScore < 80)
  73.                 sList[i].grade = 'C';
  74.             else if (sList[i].testScore < 90)
  75.                 sList[i].grade = 'B';
  76.             else
  77.                 sList[i].grade = 'A';
  78.     }
  79.    
  80. }
  81. int highestScore(const studentType sList[], int listSize)
  82. {
  83.     int hScore = sList[0].testScore;
  84.  
  85.     // TODO
  86.     for (int i = 0;i < 20;i++)
  87.     {
  88.         if (hScore < sList[i].testScore)
  89.             hScore = sList[i].testScore;
  90.     }
  91.  
  92.     return hScore;
  93. }
  94.  
  95. void printResult(ofstream& outFile, const studentType sList[], int listSize)
  96. {
  97.     cout << left << setw(30) << "Student Name" << right << setw(10) << "TestScore" << right << setw(7) << "Grade" << endl;
  98.     string name;
  99.     int high, i;
  100.  
  101.     for (i = 0; i < listSize; i++)
  102.     {
  103.         name = sList[i].studentLName + ", " + sList[i].studentFName;
  104.         cout << left << setw(30) << name << right << setw(10) << sList[i].testScore << right << setw(7) << sList[i].grade << endl;
  105.        
  106.     }
  107. }
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