eilu-cpp.cpp

// Example program
#include <iostream>
#include <string>

using namespace std;

class Person
{
    public:
    Person(){}
};
class Student : public Person
{   
    public:
    
    int *scores;
    int count;
    string fname, lname;
    
    Student(string fname, string lname, int scores[], int noOfSubjects)
    {
        this->fname = fname;
        this->lname = lname;
        this->scores = scores;
        this->count = noOfSubjects;
    }
    
    float getAverageScore()
    {
        int sum = 0;
        for(int i=0; i< count; ++i)
        {
            sum+=scores[i];
        }
        return (float)sum/count;
    }
};

// to convert int array to string for cout
#include<algorithm>
std::ostream& printArray(std::ostream &strm, int* &a, int size) 
{
    strm << "[";
    for(int i=0; i<size; ++i)
    {
        strm << " " << a[i] << ",";
    }
    return strm << "]";
}
// to convert Student object to string for cout
std::ostream& operator<<(std::ostream &strm, Student &a) 
{
    strm 
    << "Student( " 
    << '"' << a.fname << " " << a.lname << '"'
    << ", "
    << "noOfMarks: " << a.count
    << ", "
    << "averageScore: " << a.getAverageScore()
    << ", "
    << "scores: ";
    return printArray(strm, a.scores, a.count) << " )";
}

int main()
{
    int marks[] = {100,100,100,100,100,50};
    Student s("eilu","rondu", marks, 6);
    cout << s;
}