#include "iostream.h"
#include "conio.h"
#include "stdlib.h"
#include "stdio.h"
struct date{
int day;
int month;
int year;
};
struct linkedList{
long int id;
char fname[20];
char iname[20];
struct date bday;
char city[20];
char address[50];
char edu[15];
char gender[6];
struct...