For loop
I need to use a user define function to calculate grade distribution and display it along with starts.
My Program works but I don't know how to do the grade distribution using functions, I created bunch of for loops.
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#include <iostream>
#include <string>
#include "Student.h"
using namespace std;
float avg(Student *obj, int size);
//string n_stars(Student *str, int numOfStudents);
int main(){
int numOfStudents;
cout << " Please enter the number of students " << ":";
cin >> numOfStudents;
Student *s = new Student[numOfStudents];
cout << "Please enter student data" << ":" << endl;
string studentName;
int studentGrade = 0;
for (int i = 0; i < numOfStudents; i++){
cout << "Name " << ": ";
cin >> studentName;
cout << "Grade " << ":";
cin >> studentGrade;
s[i].setName(studentName);
s[i].setGrade(studentGrade);
cout << s[i].getName() << endl;
cout << s[i].getGrade() << endl;
}
avg(s, numOfStudents);
cout << "The class average is:" << avg(s, numOfStudents) << endl;
//n_stars(s, numOfStudents);
cout << "Grade Distribution:" << endl;
cout << endl;
cout << "0-9:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() >= 0 && s[i].getGrade() <= 9)
cout << "*";
}
cout << endl;
cout << "10-19:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() >= 10 && s[i].getGrade() <= 19)
cout << "*";
}
cout << endl;
cout << "20-29:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() >= 20 && s[i].getGrade() <= 29)
cout << "*";
}
cout << endl;
cout << "30-39:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() >= 30 && s[i].getGrade() <= 39)
cout << "*";
}
cout << endl;
cout << "40-49:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() >= 40 && s[i].getGrade() <= 49)
cout << "*";
}
cout << endl;
cout << "50-59:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() >= 50 && s[i].getGrade() <= 59)
cout << "*";
}
cout << endl;
cout << "60-69:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() >= 60 && s[i].getGrade() <= 69)
cout << "*";
}
cout << endl;
cout << "70-79:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() >= 70 && s[i].getGrade() <= 79)
cout << "*";
}
cout << endl;
cout << "80-89:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() >= 80 && s[i].getGrade() <= 89)
cout << "*";
}
cout << endl;
cout << "90-99:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() >= 90 && s[i].getGrade() <= 99)
cout << "*";
}
cout << endl;
cout << "100:";
for (int i = 0; i < numOfStudents; i++){
if (s[i].getGrade() == 100)
cout << "*";
}
cout << endl;
/*int sub = 0; float avg = 0;
for (int i = 0; i < numOfStudents; i++){
sub += s[i].getGrade();
}
avg = sub / (float)(numOfStudents);
cout << "Class average:" << avg << endl;
cout << endl;*/
system("pause");
return 0;
}
float avg(Student obj[], int size){
int subScore = 0;
float avg = 0.0;
for (int i = 0; i < size; i++){
subScore += obj[i].getGrade();
}
avg = subScore / (float)(size);
return avg;
}
//string n_stars(Student str, int numOfStudents){
//
//}
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Can someone please help with this?
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