Question

C++ program

For research purposes and to better help students, the admissions office of your local university wants to know how well female and male students perform in certain courses. You receive a file confidentiality, the letter code f is used for female students and m for male students. Every file in the file is unknown. Write a program that computes and outputs the average GPA for both (ECPartIData.txt) that contains female and male student GPAs for certain courses. Due to entry consists of a letter code followed by a GPA. Each line has one entry. The number of entries female and male students. Format your results to two decimal places. Your program should use the following functions: Function openFiles: This function opens the input and output files, and sets the output of decimal point and trailing zeros. sumFemaleGPA, and sumMaleGPA a. the floating-point numbers to two decimal places in a fixed decimal format with a b. Function initialize: This function initializes variables such as countFemale, countMale, Function sumGrades: This function finds the sum of the female and male students' GPAs. students Function printResults: This function outputs the relevant results. and out of functions. c. d. Function averageGrade: This function finds the average GPA for female and male e. f. There can be no global variables. Use the appropriate parameters to pass information in Sample Output Processing grades. f 3.40 f 4.00 m 3.56 m 3.80 f 2.30 3.95 3.90 m 4.00 m 2.e0 f 4.80 2.80

Answer 1

Program

#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;

void initialize(int& countMale,int& countFemale,double& sumMaleGPA,double& sumFemaleGPA,double& avgMaleGPA, double& avgFemaleGPA);
void openFiles(ifstream& inFile);
void sumGrades(int& countMale,int& countFemale,double& sumMaleGPA,double& sumFemaleGPA,ifstream& inFile);
void averageGrade(double& avgMaleGPA, double& avgFemaleGPA,int& countMale,int& countFemale,double& sumMaleGPA,double& sumFemaleGPA);
void printResults(double& avgMaleGPA,double& avgFemaleGPA);
int main() {
ifstream inFile;

int countFemale, countMale;
double sumFemaleGPA, sumMaleGPA;
double avgFemaleGPA, avgMaleGPA;

initialize(countMale,countFemale,sumMaleGPA,sumFemaleGPA,avgMaleGPA,avgFemaleGPA);
openFiles(inFile);
sumGrades(countMale,countFemale,sumMaleGPA,sumFemaleGPA,inFile);
averageGrade(avgMaleGPA,avgFemaleGPA,countMale,countFemale,sumMaleGPA,sumFemaleGPA);
printResults(avgMaleGPA,avgFemaleGPA);

inFile.close();

return 0;
}
void initialize(int& countMale,int& countFemale,double& sumMaleGPA,double& sumFemaleGPA,double& avgMaleGPA, double& avgFemaleGPA)
{
countFemale = 0, countMale = 0;
sumFemaleGPA = 0, sumMaleGPA = 0;
avgFemaleGPA = 0, avgMaleGPA = 0;
}
void openFiles(ifstream& inFile)
{
inFile.open("gpainput.txt");

}
void sumGrades(int& countMale,int& countFemale,double& sumMaleGPA,double& sumFemaleGPA,ifstream& inFile) {
char ch ;
double GPA;
while (inFile >> ch >> GPA) {
  inFile >> ch >> GPA;
  if (ch =='m') {
   sumMaleGPA = sumMaleGPA + GPA;
            countMale++;
  } else if (ch =='f'){
   sumFemaleGPA = sumFemaleGPA + GPA;
   countFemale++;
  }
}

}
void averageGrade(double& avgMaleGPA, double& avgFemaleGPA,int& countMale,int& countFemale,double& sumMaleGPA,double& sumFemaleGPA) {
avgMaleGPA = sumMaleGPA / countMale;
avgFemaleGPA = sumFemaleGPA / countFemale;

}
void printResults(double& avgMaleGPA,double& avgFemaleGPA) {
cout << "Average Male GPA: " << avgMaleGPA
   << "\nAverage female GPA: " << avgFemaleGPA << endl;
}