zadaca 1

        #include<iostream>
        #include<cstring>

        using namespace std;

        class NotValidStudentException{
            private:
                char msg[256];
            public:
                NotValidStudentException(const char * msg){
                    strcpy(this->msg, msg);
                }
                const void message(){
                    cout << this->msg;
                }
        };

        class Student{
            private:
                char ime[50];
                int index;
                int * poeni;
                int broj;
                double zavrsenPoeni;
                static double udelIspit;
                static double udelTest;
                const void copy_obj(const Student &copy){
                    strcpy(this->ime, copy.ime);
                    this->index = copy.index;
                    this->poeni = new int[copy.broj + 1];
                    for(int i=0; i<copy.broj; i++)
                        this->poeni[i] = copy.poeni[i];
                    this->broj = copy.broj;
                    this->zavrsenPoeni = copy.zavrsenPoeni;
                }
            public:
                Student(){
                    strcpy(this->ime, "Unknown");
                    this->index = 0;
                    this->poeni = new int[0];
                    this->broj = 0;
                    this->zavrsenPoeni = 0.0;
                }
                Student(const char * ime, const int index, const int * poeni, const int broj, const double zavrsenPoeni){
                    strcpy(this->ime, ime);
                    this->index = index;
                    this->poeni = new int[broj + 1];
                    for(int i=0; i<broj; i++)
                        this->poeni[i] = poeni[i];
                    this->broj = broj;
                    this->zavrsenPoeni = zavrsenPoeni;
                }
                Student(const Student &copy){
                    this->copy_obj(copy);
                }
                Student &operator=(const Student &copy){
                    if(this != &copy){
                        delete [] this->poeni;
                        this->copy_obj(copy);
                    }
                    return *this;
                }
                ~Student(){
                    delete [] this->poeni;
                }
                static void examContribution(double newPercent){
                    udelIspit = newPercent;
                    udelTest = 1.0 - newPercent;
                }
                const double getPoeni(){
                    double total=0.0;
                    for(int i=0; i<this->broj; i++)
                        total += this->poeni[i];
                    return total;
                }
                const double sumarniPoeni(){
                    double testPoints = this->getPoeni();
                    if(this->getPoeni() > 100.0)
                        testPoints = 100.0;
                    return (this->zavrsenPoeni * udelIspit) + (testPoints * udelTest);
                }
                const int ocenka(){
                    if(this->sumarniPoeni() > 0 && this->sumarniPoeni()<=49.99)
                        return 5;
                    else if(this->sumarniPoeni() >= 50 && this->sumarniPoeni()<=59.99)
                        return 6;
                    else if(this->sumarniPoeni() >= 60 && this->sumarniPoeni()<=69.99)
                        return 7;
                    else if(this->sumarniPoeni() >= 70 && this->sumarniPoeni()<=79.99)
                        return 8;
                    else if(this->sumarniPoeni() >= 80 && this->sumarniPoeni()<=89.99)
                        return 9;
                    else if(this->sumarniPoeni() >= 90 && this->sumarniPoeni()<=100.0)
                        return 10;
                }
                friend ostream &operator << (ostream &os, Student &orig){
                    os << orig.index << " " <<orig.ime << "\n";
                    if(orig.getPoeni() > 100)
                        os << "Testovi: " << 100 << "\n";
                    else os << "Testovi: " << orig.getPoeni() << "\n";
                    os << "Zavrshen ispit: " << orig.zavrsenPoeni << "\n";
                    os << "Sumarni poeni: " << orig.sumarniPoeni() << "\n";
                    os << "Ocenka: " << orig.ocenka() << "\n";

                    return os;
                }
                const int getBroj(){
                    return this->broj;
                }
        };

        class Course{
            private:
                Student *stu;
                int broj;
            public:
                Course(){
                    this->stu = new Student[0];
                    this->broj = 0;
                }
                ~Course(){
                    delete [] this->stu;
                }
                Course &operator+=(Student &add){
                    if(add.getBroj() == 0)
                        throw NotValidStudentException("Korisnikot nema pravo na potpis\n");
                    Student * tmp = new Student[this->broj + 1];
                    for(int i=0; i<this->broj; i++)
                        tmp[i] = this->stu[i];
                    tmp[this->broj++] = add;
                    delete [] this->stu;
                    this->stu = tmp;

                    return *this;
                }
                int averageMark(){
                    int sum = 0;
                    for(int i=0; i<this->broj; i++){
                        sum += this->stu[i].ocenka();
                    }

                    return (sum/this->broj) + 1;
                }
                friend ostream &operator << (ostream &os, Course &orig){
                    for(int i=0; i<orig.broj; i++)
                        os << orig.stu[i];
                    os << "Prosecna ocenka na polozenite: " <<orig.averageMark() << "\n";
                    return os;
                }
        };
        double Student::udelIspit = 0.75;
        double Student::udelTest = 0.25;

        int main () {

            int testCase;
            int index;
            char name [50];
            int n;
            int * tests;
            double exam;
            double newPercent;

            cin>>testCase;

            if (testCase==1) {
                cout<<"Testing Student constructor and operator <<"<<endl;
                cin>>name;
                cin>>index;
                cin>>n;
                tests = new int [n];
                for (int i=0;i<n;i++){
                    cin>>tests[i];
                }
                cin>>exam;
                Student s (name, index, tests, n, exam);
                cout<<s<<endl;

            }
            else if (testCase == 2) {
                cout<<"Testing Student copy constructor and operator <<"<<endl;
                cin>>name;
                cin>>index;
                cin>>n;
                tests = new int [n];
                for (int i=0;i<n;i++){
                    cin>>tests[i];
                }
                cin>>exam;
                Student s (name, index, tests, n, exam);
                Student s1 (s);
                cout<<s1<<endl;

            } else if (testCase == 3) {
                cout<<"Testing Student operator = and operator <<"<<endl;

                cin>>name;
                cin>>index;
                cin>>n;
                tests = new int [n];
                for (int i=0;i<n;i++){
                    cin>>tests[i];
                }
                cin>>exam;
                Student s (name, index, tests, n, exam);
                Student s1;
                s1=s;
                cout<<s1<<endl;

            } else if (testCase == 4) {
                cout<<"Testing Course class, operator += and operator <<"<<endl;
                Course c;
                int studentsCount;
                cin>>studentsCount;

                for (int j=0;j<studentsCount;j++) {
                    cin>>name;
                    cin>>index;
                    cin>>n;
                    tests = new int [n];
                    for (int i=0;i<n;i++){
                        cin>>tests[i];
                    }
                    cin>>exam;
                    Student s (name, index, tests, n, exam);
                    c+=s;
                }

                cout<<c;
            } else if (testCase == 5) {
                cout<<"Testing Course class, operator += with exceptions and operator <<"<<endl;
                Course c;
                int studentsCount;
                cin>>studentsCount;

                for (int j=0;j<studentsCount;j++) {
                    cin>>name;
                    cin>>index;
                    cin>>n;
                    tests = new int [n];
                    for (int i=0;i<n;i++){
                        cin>>tests[i];
                    }
                    cin>>exam;
                    Student s (name, index, tests, n, exam);
                    try {
                        c+=s;
                    }
                    catch (NotValidStudentException e) {
                        e.message();
                    }
                }

                cout<<c;
            } else if (testCase == 6) {
                cout<<"Testing examContribution function in Student"<<endl;
                cin>>name;
                cin>>index;
                cin>>n;
                tests = new int [n];
                for (int i=0;i<n;i++){
                    cin>>tests[i];
                }
                cin>>exam;
                Student s (name, index, tests, n, exam);
                cout<<s<<endl;
                Student::examContribution(0.6);
                cout<<s<<endl;
            } else if (testCase == 7) {
                cout<<"Test all (without exceptions)"<<endl;
                Course c;
                int studentsCount;
                cin>>studentsCount;

                for (int j=0;j<studentsCount;j++) {
                    cin>>name;
                    cin>>index;
                    cin>>n;
                    tests = new int [n];
                    for (int i=0;i<n;i++){
                        cin>>tests[i];
                    }
                    cin>>exam;
                    Student s (name, index, tests, n, exam);
                    c+=s;
                }

                cout<<c;

                cout<<"After change of exam percent"<<endl;
                Student::examContribution(0.55);

                cout<<c;
            }


            return 0;
        }