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98 lines
2.4 KiB
98 lines
2.4 KiB
#include "iostream"
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#include "string"
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#include "vector"
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#include <numeric>
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class University;
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class UniMember {
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public:
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University* uni;
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std::string name;
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int id;
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UniMember(University* university, std::string name, int id) {
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this->uni = university;
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this->name = name;
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this->id = id;
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}
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};
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class UniWorker: public UniMember {
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public:
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UniWorker(University* university, std::string name, int id)
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: UniMember(university, name, id) {}
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};
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class UniStudent: public UniMember {
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public:
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UniStudent(University* university, std::string name, int id)
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: UniMember(university, name, id) {}
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void evaluate_exam(double grade){
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grades.push_back(grade);
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}
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double calc_avg(){
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if(grades.empty()) return 0;
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auto const count = static_cast<double>(grades.size());
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return std::reduce(grades.begin(), grades.end()) / count;
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}
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private:
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std::vector <double> grades;
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};
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class University {
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public:
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std::string name;
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UniWorker* dean;
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University(std::string name) {
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this->name = name;
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}
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UniWorker* create_worker(std::string mem_name) {
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int id = members.size() + 1;
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UniWorker* worker = new UniWorker(this, mem_name, id);
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members.push_back(worker);
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return worker;
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}
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UniStudent* create_student(std::string mem_name) {
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int id = members.size() + 1;
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UniStudent* student = new UniStudent(this, mem_name, id);
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members.push_back(student);
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return student;
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}
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void elect_dean(UniWorker* worker) {
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dean = worker;
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}
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int count_members() {
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return members.size();
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}
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private:
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std::vector <UniMember*> members;
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};
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int main() {
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University* trier = new University("Trier");
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UniWorker* dean = trier->create_worker("Eva Eckkrammer");
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trier->elect_dean(dean);
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UniStudent* student = trier->create_student("Jan-Niclas Loosen");
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student->evaluate_exam(1.3);
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student->evaluate_exam(2.3);
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student->evaluate_exam(1.3);
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student->evaluate_exam(3.3);
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std::cout << "Die Universitaet " << trier->name << " hat " << trier->count_members() << " Mitglieder." << std::endl;
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std::cout << "Die Dekanin der Universitaet " << trier->name << " heisst " << trier->dean->name << "." << std::endl;
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std::cout << student->name << " hat einen Notenschnitt von " << student->calc_avg() << "." << std::endl;
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}
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