How to write cpp program to reverse a linked list

//C++ program for reversing single Linked list nodes 
Cpp program for implement reversing Single Linked List
Single linked list program for reversing the nodes
How to reverse linked list 

#include<iostream>

using namespace std;

struct node

{

node *next;

int data;

};

class ll

{

private:

node *start;

public:

ll(){start=NULL;}

void insert(int a)

{

cout<<"Inside Insert."<<endl;

node *newnode=new node;

newnode->data=a;

newnode->next=start;

start=newnode;

//return;

}

void display();

void del();

void reverse();

};

How to write sorted linked list program in cpp with class

How to write sorted linked list program in cpp with class

C++ Program for sorted single linked list with class

//sorted linked list latest

#include<iostream>

using namespace std;

struct node

{

int data;

node *next;

};

node *start=NULL;

void insert(int d)

{

node *newnode=new node;

newnode->data=d;

newnode->next=NULL;

//insert as first elt

if(start==NULL)

{