// This code creates a linked list to store PRN and names of n number of students.
// We're not sure if there's anything more to it. For now, it only stores and displays.

#include <iostream>
using namespace std;

class node {
  int roll;
  string name;
  node *next;

  public:
    static node* create();
    void display(node* head);
};

node* node::create() {
  int total;
  node *head=NULL;
  node* point=NULL;
  cout<<"Total number of students are:\t";
  cin>>total;

  for (int i=0; i<total; i++) {
    if (head==NULL) {
      head = new node;
      cout<<"Enter PRN number for student "<<i+1<<":\t";
      cin>>head->roll;
      cout<<"Enter name for student "<<i+1<<":\t";
      cin>>head->name;
      head->next=NULL;
      point=head;
    }
    else {
      point->next=new node;
      point=point->next;
      cout << "Enter PRN number for student "<<i+1<<":\t";
      cin>>point->roll;
      cout << "Enter name for student "<<i+1<<":\t";
      cin>>point->name;
      point->next=NULL;
    }
  }
  return head;
}

void node::display(node* head) {
  node* point=this;
  cout<<endl<<"PRNs and names are:"<<endl;
  for (point=head; point!=NULL; point=point->next) {
    cout<<point->roll<<" -> "<<point->name<<endl;
  }
  cout<<endl<<"## DESIGNED AND ENGINEERED BY KSHITIJ\n## END OF CODE"<<endl;
}

int main() {
    node* head = node::create();
    head->display(head);
  return 0;
}