#include<iostream>
#include<string.h>
#include<string>
using namespace std;
class node{
public:
int roll_no;
string name;
node *next;
};
class std_list{
private:
node *start,*current,*temp;
public:
std_list(void){
start=NULL;
}
void insert(int,string);
void insert_end(int,string);
void delete_end();
void count();
void search(int);
void display();
};
void std_list::delete_end(){
node *previous;
if(start==NULL){
cout<<"List is empty"<<endl;
return;
}
else
{
current=start;
while (current->next!=NULL)
{
previous=current;
current=current->next;
}
cout<<"Data of last student is "<<current->name<<endl;
previous->next=NULL;
delete current;
cout<<"Data of last Student is Deleted"<<endl;
}
}
void std_list::insert_end(int rn,string name){
temp=new node;
temp->name=name;
temp->roll_no=rn;
temp->next=NULL;
if(start==NULL){
start=temp;
}
else{
current=start;
while (current->next!=NULL)
{
current=current->next;
}
}
current->next=temp;
}
void std_list::insert(int rn,string nm){
temp=new node;
temp->roll_no=rn;
temp->name=nm;
temp->next=NULL;
if(start==NULL){
start=temp;
}
else
{
current=start;
while (current->next!=NULL)
{
current=current->next;
}
current->next=temp;
}
}
// end of insert function
void std_list::display(){
if(start==NULL){
cout<<"List is empty";
return;
}
else{
int rec=1;
current=start;
while (current!=NULL)
{
cout<<"Student record of #"<<rec<<endl;
cout<<"Name: "<<current->name<<endl;
cout<<"Roll: "<<current->roll_no<<endl;
current=current->next;
rec++;
}
}
} //end of display function
void std_list::count(){
node *temp;
current=start;
int n=0;
while (current!=NULL)
{
n++;
current=current->next;
}
cout<<"Student in this is school is "<<n<<endl;
} //end of count function
void std_list::search(int rn){
node *temp;
int f=0;
current=start;
while (current!=NULL)
{
if(current->roll_no==rn){
f=1;
}
current=current->next;
}
if(f==1){
cout<<"Student with the roll #"<<rn<<" is Exist in the school"<<endl;
}
else{
cout<<"No Student with the roll #"<<rn<<endl;
}
}
int main()
{
std_list obj;
// insert data
obj.insert(14,"Zoha");
obj.insert(11,"Zoha");
// insert data at end
obj.insert_end(22,"Zoha Ali");
// dispaly data
obj.display();
// coutn data
obj.count();
// search data
obj.search(22);
// delete data at the end
obj.delete_end();
return 0;
}
