#include <iostream>
#include <string>

using namespace std;

struct Student {
    string name;
    string surname;
    float grade;

    Student *next
};

Student *head = null;
Student *tail = null;

void sort(Student *ptr) {
    bool swap = false;
    bool sorted = false;
    int i = 0;
    while(sorted == false){
        Student *temp;

        for(int i=0;i<4-1;i++){
            if(*(ptr+i)->grade > *(ptr+i+1)->grade){

                temp = *(ptr+i);
                *(ptr+i) = *(ptr+i+1);
                *(ptr+i+1) = temp;
                swap = true;

            }
        }

        if(swap == true){
            sorted = false;
        } else {
            sorted = true;
        }

        swap = false;
    }
}

int main() {

    return 0;
}