// 		FCFS without arrival time
#include<iostream.h>
#include<conio.h>
struct process
{
	int p,bt,tat,wt;
}pro[10];

void main()
{
	clrscr();
	int n,x=0,ttat=0,twt=0;
	cout<<"\t::Program for FCFS scheduling without Arrival Time::";
	cout<<"\n--------------------------------------------------------------------\n\n";
	cout<<"\nEnter the no. of Processes:";
	cin>>n;
	for(int i=0;i<n;i++)
	{
		pro[i].p=i+1;
		cout<<"\nEnter the Burst Timeof Process"<<i+1<<":";
		cin>>pro[i].bt;
		pro[i].wt=x;
		twt+=x;
		x+=pro[i].bt;
		ttat+=x;
		pro[i].tat=x;
	}
	cout<<"\n\n-----------------------------------------------------------\n";
	cout<<"Process  |  Burst Time  |  TurnAroundTime  |  Witing Time |\n";
	cout<<"-----------------------------------------------------------\n\n";
	for(i=0;i<n;i++)
		cout<<"   P"<<pro[i].p<<"\t | \t "<<pro[i].bt<<" \t|   \t "<<pro[i].tat<<" \t   |  \t"<<pro[i].wt<<" \t  |  \n";
	cout<<"\n-----------------------------------------------------------";
	cout<<"\n\nTotal Turn Around Time = "<<ttat;
	cout<<"\nTotal Waiting Time = "<<twt;
	cout<<"\nAverage Turn Around Time = "<<ttat/n;
	cout<<"\nAverage Waiting Time = "<<twt/n;
	getch();
}
/*
OUTPUT:
	::Program for FCFS scheduling without Arrival Time::
------------------------------------------------------------------------------------------------

Enter the no. of Processes:4
Enter the Burst Timeof Process1:20
Enter the Burst Timeof Process2:13
Enter the Burst Timeof Process3:17
Enter the Burst Timeof Process4:9

--------------------------------------------------------------------------------------------
Process      |          Burst Time   |    TurnAroundTime    |      Waiting Time     |
--------------------------------------------------------------------------------------------
   P1	 | 	 20 	|   	 20 	   |  	0 	  |  
   P2	 | 	 13 	|   	 33 	   |  	20 	  |  
   P3	 | 	 17 	|   	 50 	   |  	33 	  |  
   P4	 | 	 9 	|   	 59 	   |  	50 	  |  
--------------------------------------------------------------------------------------------

Total Turn Around Time = 162
Total Waiting Time = 103
Average Turn Around Time = 40
Average Waiting Time = 25
*/