#include <iostream>
#include <string>
#include <vector>

using namespace std;

// -----------------------------
// Prototype of the class student
// -----------------------------

class student{
   // methods
   public:
     //student(); // default constructor
     student(string name = "", float mark = 0);
     ~student();

     void Print() const;
     //friend ostream& operator<<(ostream& os, const student& s);

   // data members
 
   // Accessors
   
   string GetName() const  {return name;}
   float GetMark() const   {return mark;}
   int GetRank() const     {return rank;}

   // Mutators
   void SetName(string n){name = n;}
   void SetMark(float m){mark = m;}
   void SetRank(int r){rank = r;}

    void Print();

   private:

     string name;
     float mark;
     int rank;


};

// -----------------------------
// Implementation of the class student
// -----------------------------

// put default values to all the data members
/*
student::student(){
  name = "";
  mark = 0;
  rank = -1;
}
*/

//other constructor with 2 arguments
student::student(string n, float m){
    name = n;
    mark = m;
    rank = -2;
}

student::~student(){
}

void student::Print(){
    cout<<"This student is "<<name<<" who had a mark of "<<mark<<endl;
}

/*
ostream& student::operator<<(ostream& os, const student& s){
//ostream& student::operator<<(ostream& os){//, const student& s){
    os<<"This student is "<<name<<" who had a mark of "<<mark;
    return os;
}
*/

//student Best(const vector<student>& vec){
string Best(const vector<student>& vec){
    student ImTheBest;
    float max_mark = 0;
    if(vec.size() == 0){
        cerr<<"There is no students !"<<endl;
    }
    for(int i=0;i<vec.size();i++){
        if(vec[i].GetMark()>= max_mark){
               ImTheBest = vec[i];
               max_mark = vec[i].GetMark();
        }
    }
    return ImTheBest.GetName();

}

void Print2(student s){
    cout<<"This student is "<<s.GetName()<<" who had a mark of "<<s.GetMark()<<endl;

}

int main(){
  student s1("Eric",10);
  student s2;
  s2.SetName(string("toto"));
  s2.SetMark(19.5);
  student s3;
  s3.SetName(string("titi"));
  s3.SetMark(12.3);
  student s4("tata",14.2);
  cout<<"This new student is: "<<s4.GetName()<<endl;
  s4.Print();
  Print2(s4);
  //cout<<s4<<endl;


  cout<<"Rank of Eric "<<s1.GetRank()<<endl;

  vector<student> v;
  v.push_back(s1);
  v.push_back(s2);
  v.push_back(s3);
   
  //student best_ = Best(v);
  //cout<<best_.name<<" is the best student !"<<endl;
  cout<<Best(v)<<" is the best student !"<<endl;

}