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linkedlist.cpp
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linkedlist.cpp
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#include<bits/stdc++.h>
using namespace std;
//#define ll linkedlist;
struct node
{
int data;
struct node* next;
};
struct node * start=NULL;
struct node * create_ll(node*);
void display_ll(node*);
signed main ()
{
start=create_ll(start);
display_ll(start);
return 0;
}
//THE FOLLOWING FUNCTION CREATES LINKED LIST
struct node* create_ll(node*)
{
node *ptr; node *new_node;
cout<<"enter -404 to end"<<endl;
while(true)
{ new_node = new struct node;
if (new_node==NULL)
cout<<"memory allocation failed"<<endl;
else
{ cout<<"Enter the data: "<<endl;
cin>>new_node->data;
if (new_node->data == -404)
break;
new_node->next=NULL;
if(start == NULL)
start = new_node;
else
{
ptr= start;
while(ptr->next != NULL)
ptr=ptr->next;
ptr->next= new_node;
}
}
}
return start;
}
//THE FOLLOWING FUNCTION DISPLAYS THE LINKEDLIST
void display_ll(node*)
{
node *ptr;
ptr=start;
while(ptr->next!=NULL)
{
cout<<ptr->data<<endl;
ptr=ptr->next;
}
// return start;
}