#include <iostream> #include <conio.h> using namespace std; struct node { int data; node *prev, *next; }*q, *temp, *start=NULL; int c1, c2 ; void create(); void display(); void insert(); void del(); int main() { while(1) { cout <<" \t\t ******* MAIN MENU ******\n" ; cout <<"Press 1 for adding data \n" ; cout <<"Press 2 for displaying data \n" ; cout <<"Press 3 for insertion \n" ; cout <<"Press 4 for deletion \n" ; cout <<"Press 0 for exit\n\nAns. " ; ...