struct_1

#include <iostream> //exercise 1
#include <string> //create structure STUDENT, which includes full name, birth's year, marks for session
#include <vector> //output - names of students, which average mark is higher than predetermined number
#include <fstream> //example of input-file(for this example k = 5): Kozhina Olga Olegovna 1234 5 4 3 2 1

using namespace std;

int k; //amount of marks; for comfortable counting of average mark

struct Student
{
        Student(){};
        string surname, name, patrinymic_name;
        int birth_year;
        int* marks;
        Student(string surname, string name, string patrinymic_name, int birth_year, int* marks) : surname(surname), name(name), patrinymic_name(patrinymic_name), birth_year(birth_year), marks(marks) {};

        double averageMark()
        {
            double sum = 0;
            for(int i = 0; i < k; i++)
                sum += *(marks + i);
            return sum / k;
        }
};


int main()
{
    ifstream in("input.txt");
    ofstream out("output.txt");

    double n;
    cout << "Enter the border: ";
    cin >> n;

    vector<Student> student;

    cout << "How many exams do students have to pass? ";
    cin >> k;

    while(in.peek() != EOF)
    {

        string surname, name, patrinymic_name;
        int birth_year;
        int *marks = new int[k];

        in >> surname;
        in >> name;
        in >> patrinymic_name;
        in >> birth_year;

        for(int i = 0; i < k; i++)
            in >> *(marks + i);
        student.push_back(Student(surname, name, patrinymic_name, birth_year, marks));
    }

    for(unsigned int i = 0; i < student.size(); i++)
    {
        if (student[i].averageMark() > n)
            out << student[i].surname << " "  << student[i].name << " " << student[i].patrinymic_name << endl;
    }

    in.close();
    out.close();
    system("pause");
    return 0;
}