C++ List and tree

I need someone who can make two programs which are used to validate a work schedule, you can't use STL function and I want , you create this project on codeblocks , Use AVL Tree and I give you an example (use it) and I want this on main int main(...) { Inventaire inventaire_initial; std::cin >> inventaire_initial; Cedule cedule(inventaire_initial); while(std::cin){ Tache tache; std::cin >> tache; Cedule ceduletest = cedule; [login to view URL](tache); if([login to view URL]()){ std::cout << "OK : " << [login to view URL]() << std::endl; [login to view URL](tache); // ou cedule = ceduletest; }else{ std::cout << "Erreur : << [login to view URL]() << std::endl; Liste conflits = [login to view URL](); std::cout << conflits << std::endl; } } return 0; }