code.c

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<string.h>
char i=':';
char chEmpty[]="Empty";
struct time
{
 int iHrs,iMins;
};
static int Num=0;
struct node
{
 int bus_no;
 int iBusNum;
 int iBusCode;
 char chSeat[8][4][20];
 char chDrivers_Name[20];
 struct time stDeparture_Time, stArrival_Time;
 char chGoesTo[20];
 char chGoesFrom[20];
 float fFare;
 int iTicketSold;
 struct node *next;
}*p;
//Searching a Bus its bus number
void srch(int num)
{
 struct node *r;
 r=p;
 if(num==1)
 {
 printf("\nBus code -> %d\tDriver's name -> %s",r->bus_no,r-
>chDrivers_Name);
 printf("\nArrival time -> %d%c%d\tDeparture time -> %d%c%d",r-
>stArrival_Time.iHrs,i,r->stArrival_Time.iMins,r->stDeparture_Time.iHrs,i,r-
>stDeparture_Time.iMins);
 printf("\nFrom -> %s \t To -> %s",r->chGoesFrom,r->chGoesTo);
 printf("\nFare -> %f \t Tickets sold -> %d",r->fFare,r->iTicketSold);
 int i1,i2,index=0;
 for(i1=0;i1<8;i1++)
 {
 printf("\n");
 for(i2=0;i2<4;i2++)
 {
 index++;
 printf("%d. %s\t ",index,r->chSeat[i1][i2]);
 }
 }
 }
 else if(num<=cunt(p))
 {
 int i;
 for(i=1;i<num;i++)
 {
 r=r->next;
 }
 printf("\nBus code -> %d\tDriver's name -> %s",r->bus_no,r-
>chDrivers_Name);
 printf("\nArrival time -> %d%c%d\tDeparture time -> %d%c%d",r-
>stArrival_Time.iHrs,i,r->stArrival_Time.iMins,r->stDeparture_Time.iHrs,i,r-
>stDeparture_Time.iMins);
 printf("\nFrom -> %s \t To -> %s",r->chGoesFrom,r->chGoesTo);
 printf("\nFare -> %f \t Tickets sold -> %d",r->fFare,r->iTicketSold);
 int i1,i2,index=0;
 for(i1=0;i1<8;i1++)
 {
 printf("\n");
 for(i2=0;i2<4;i2++)
 {
 index++;
 printf("%d. %s\t ",index,r->chSeat[i1][i2]);
 }
 }
 }
 else
 {
 printf("\n Wrong Bus number input (Remember, not Bus code, Bus
NUMBER!)\n");
 }
}
//counting total number of buses
int cunt(struct node *q)
{
 struct node *temp;
 temp=q;
 int tot=0;
 while(temp!=NULL)
 {
 tot++;
 temp=temp->next;
 }
 return (tot);
}
//deleting a bus entry by its Bus code by its value
void Delete(int num)
{
 struct node *temp,*r;
 r=p;
 while(r!=NULL)
 {
 if(r->bus_no==num)
 {
 if(r==p)
 {
 p=r->next;
 free(r);
 return;
 }
 else
 {
 temp->next=r->next;
 free(r);
 return;
 }
 }
 else
 {
 temp=r;
 r=r->next;
 }
 }
printf("No such Bus code found.\n");
}
void insert(int x)
{
 struct node *temp,*m;
 m=p;
 temp=(struct node *)malloc(sizeof(struct node));
 temp->bus_no=x;
 Num++;
 temp->iBusNum=Num;
 dname:
 printf("Enter driver's name : ");
 fflush(stdin);
 gets(temp->chDrivers_Name);
 if(strlen(temp->chDrivers_Name)>20)
 {
 printf("Maximum 20 characters are allowed");
 goto dname;
 }
 aTime:
 printf("Enter arrival time : ");
 fflush(stdin);
 scanf("%d%c%d",&temp->stArrival_Time.iHrs,&i,&temp-
>stArrival_Time.iMins);
 if(temp->stArrival_Time.iHrs==0)
 {
 printf("\nInvalid time.");
 goto aTime;
 }
 if((i!=':')||(temp->stArrival_Time.iHrs>=24)||(temp-
>stArrival_Time.iHrs<0)||(temp->stArrival_Time.iMins>=60)||(temp-
>stArrival_Time.iMins<0))
 {
 printf("\nInvalid time !\n\t\tOnly format HH:MM accepted\n");
 goto aTime;
 }
 dTime:
 printf("Enter departure time : ");
 fflush(stdin);
 scanf("%d%c%d",&temp->stDeparture_Time.iHrs,&i,&temp-
>stDeparture_Time.iMins);
 if(temp->stDeparture_Time.iHrs==0)
 {
 printf("\nInvalid time.");
 goto dTime;
 }
 if((i!=':')||(temp->stDeparture_Time.iHrs>=24)||(temp-
>stDeparture_Time.iHrs<0)||(temp->stDeparture_Time.iMins>=60)||(temp-
>stDeparture_Time.iMins<0))
 {
 printf("\nInvalid time !\n\t\tOnly format HH:MM accepted\n");
 goto dTime;
 }
to:
 printf("Enter destination : ");
 fflush(stdin);
 gets(temp->chGoesTo);
 if(strlen(temp->chGoesTo)>20)
 {
 printf("\nOnly 20 characters or less");
 goto to;
 }
from:
 printf("Enter starting place : ");
 fflush(stdin);
 gets(temp->chGoesFrom);
 if(strlen(temp->chGoesFrom)>20)
 {
 printf("\nOnly 20 characters or less");
 goto from;
 }
 printf("Enter fare of one ticket : ");
 fflush(stdin);
 scanf("%f",&temp->fFare);
 temp->iTicketSold=0;
 int i1,i2;
 for(i1=0;i1<8;i1++)
 {
 for(i2=0;i2<4;i2++)
 {
 strcpy(temp->chSeat[i1][i2],chEmpty);
 }
 }
 if(p==NULL)
 {
 p=temp;
 p->next=NULL;
 }
 else
 {
 while(m->next!=NULL)
 m=m->next;
 m->next=temp;
 m=temp;
 m->next=NULL;
 }
}
void Print(struct node *q)
{
 struct node *r;
 r=q;
 int cnt=1;
 while(r!=NULL)
 {
 line();
 printf("\n\nBus code -> %d\tBus number -> %d \tDriver's name -> %s",r-
>bus_no,cnt,r->chDrivers_Name);
 printf("\nArrival time -> %d%c%d\tDeparture time -> %d%c%d",r-
>stArrival_Time.iHrs,i,r->stArrival_Time.iMins,r->stDeparture_Time.iHrs,i,r-
>stDeparture_Time.iMins);
 printf("\nFrom -> %s \t To -> %s",r->chGoesFrom,r->chGoesTo);
 printf("\nFare -> %f \t Tickets sold -> %d",r->fFare,r->iTicketSold);
 cnt++;
 int i1,i2,index=0;
 for(i1=0;i1<8;i1++)
 {
 printf("\n");
 for(i2=0;i2<4;i2++)
 {
 index++;
 printf("%d. %s\t ",index,r->chSeat[i1][i2]);
 }
 }
 r=r->next;
 }
 printf("\n");
}
void reservation(struct node *q)
{
 struct node *r;
 r=q;
 int num,count=0,Seat;
 res:
 printf("Enter bus number : ");
 fflush(stdin);
 scanf("%d",&num);
 if(num>cunt(q)||(num<1))
 {
 printf("Sorry, no bus found with the given Bus number.\n");
 goto res;
 }
 while(count<num-1)
 {
 r=r->next;
 count++;
 }
 seat:
 printf("Enter seat number : ");
 fflush(stdin);
 scanf("%d",&Seat);
 char Name[20];
 if(Seat>32)
 {
 printf("Only 32 seats are there.\n");
 goto seat;
 }
 else if(Seat<1)
 {
 printf("Invalid input.\n");
 goto seat;
 }
 else if(strcmp(r->chSeat[Seat/4][Seat%4-1],"Empty")==0)
 {
 printf("Enter the passenger's name : ");
 name:
 fflush(stdin);
 gets(Name);
 if(strlen(Name)>20)
 {
 printf("Max 20 characters allowed\n");
 goto name;
 }
 strcpy(r->chSeat[Seat/4][Seat%4-1],Name);
 printf("\nSeat successfully reserved!\nDo you want to continue
reservation ? : ");
 r->iTicketSold++;
 char ch;
 ch=getchar();
 if(ch=='y'||ch=='Y')
 {
 reservation(q);
 }
 else
 main();
 }
 else
 {
 printf("Seat already booked!\n");
 goto seat;
 }
}
void cancel()
{
 if(Num==0)
 {
 printf("Bus list is empty.\n");
 main();
 }
 struct node *r;
 r=p;
 enter:
 printf("Enter Bus number : ");
 int bus,ind=1;
 fflush(stdin);
 scanf("%d",&bus);
 if(bus<1||bus>cunt(p))
 {
 printf("\nInvalid input.\n");
 goto enter;
 }
 else
 {
 while(ind<bus)
 {
 r=r->next;
 ind++;
 }
 }
 printf("Enter seat number : ");
 int sea;
 scanf("%d",&sea);
 if(strcmp(r->chSeat[sea/4][sea%4-1],"Empty")==0)
 {
 printf("The seat is already empty !\n");
 goto enter;
 }
 else
 {
 strcpy(r->chSeat[sea/4][sea%4-1],"Empty");
 printf("Successfully canceled reservation.\n");
 r->iTicketSold--;
 main();
 }
}
void daily_profit()
{
 struct node *r,*s;
 r=p;
 s=p;
 int cnt=0;
 if(cunt(p)==0)
 {
 printf("No buses are available\n");
 main();
 }
 while(s!=NULL)
 {
 if(s->iTicketSold!=0)
 {
 cnt++;
 }
 s=s->next;
 }
 if(cnt==0)
 {
 printf("No booking is done yet.\n");
 getch();
 main();
 }
 float Total=0;
 while(r!=NULL)
 {
 Total=Total+(r->iTicketSold*r->fFare);
 r=r->next;
 }
 printf("The total income of the buses is : %.2f\n",Total);
 main();
}
void line()
{
 int i;
 printf("\n");
 for(i=0;i<60;i++)
 {
 printf("*");
 }
 printf("\n");
}
//The main function
void main()
{
 int A;
 while(1)
 {
 line();
 printf("\n0.EXIT\n1.INSERTING NEW BUS.");
 printf("\n2.REMOVING BUS AND ALL ITS COMPONENTS FROM
LIST BY BUS code");
 printf("\n3.PRINTING DETAILS OF ALL BUSES");
 printf("\n4.TOTAL NUMBER OF BUSES\n5.SEARCHING BUS BY ITS
BUS NUMBER");
 printf("\n6.Reservation of seats\n7.Cancel a reservation\n8.Daily profit.");
 printf("\n\nEnter your choice here : ");
 scanf("%d",&A);
 switch(A)
 {
 case 1:
 {
 int x,n,i;
 line();
 printf("Enter bus code : ");
 scanf("%d",&x);
 insert(x);
 break;
 }
 case 2:
 {
 line();
 printf("\n Enter Bus code : ");
 int num;
 scanf("%d",&num);
 Delete(num);
 Print(p);
 }
 case 3:
 {
 line();
 Print(p);
 break;
 }
 case 4:
 {
 line();
 printf("Total number of Buses are %d\n",cunt(p));
 break;
 }
 case 5:
 {
 int num;
 line();
 printf("Enter Bus number : ");
 scanf("%d",&num);
 if(num>cunt(p)||num<1)
 {
 printf("Invalid number !! \n");
 main();
 }
 srch(num);
 break;
 }
 case 6:
 {
 line();
 reservation(p);
 break;
 }
 case 7:
 {
 line();
 cancel();
 break;
 }
 case 8:
 {
 line();
 daily_profit();
 break;
 }
 case 0:
 {
 line();
 exit(1);
 break;
 }
 default:
 {
 printf("\n\nWrong choice...");
 break;
 }
 }
 }
}