Railway reservations project

Project: #include<iostream> #include<fstream> #include<conio.h> #include<stdio.h> #include<string.h> #include<windows.h> using namespace std; void add(); void disp(); class pn         { public:     int pnr;  }x;  class train  {    public: int tno,ac,sleeper,sc,time,dist,fac,fsleeper,fsc; char from[100],to[100],name[100]; void modify(); void del(); void display(); void acp(); void check(); void update(int); int ret() { return tno; }    char *f1()   { return from;    }    char *t1()   { return to;   }   }t; class book:public pn { public: int no,tickets,pnr; char pto[100],pfrom[100],clas[20]; long int amt; public: int retpnr() { return pnr; } int rettic() { return tickets; } int retamt() { return amt; } void ge...