fcfs

#include<stdio.h>
void main()
{
int i=0,j=0,b[i],g[20],p[20],w[20],t[20],a[20],n=0,m;
float avgw=0,avgt=0;
printf("Enter the number of process : ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("Process ID : ");
scanf("%d",&p[i]);
printf("Burst Time : ");
scanf("%d",&b[i]);
printf("Arrival Time: ");
scanf("%d",&a[i]);
}
int temp=0;
for(i=0;i<n-1;i++)
{
for(j=0;j<n-1;j++)
{
if(a[j]>a[j+1])
{
temp=a[j];
a[j]=a[j+1];
a[j+1]=temp;
temp=b[j];
b[j]=b[j+1];
b[j+1]=temp;
temp=p[j];
p[j]=p[j+1];
p[j+1]=temp;
} } }
g[0]=0;
for(i=0;i<n;i++)
g[i+1]=g[i]+b[i];
for(i=0;i<n;i++)
{
t[i]=g[i+1]-a[i];
w[i]=t[i]-b[i];
avgw+=w[i];
avgt+=t[i];
}
avgw=avgw/n;
avgt=avgt/n;
printf("pid\tarrivalTime\tBurstTime\t\tCompletionTime\t\tWaitingtime\t\tTurnaroundTime\
n");
for(i=0;i<n;i++)
{
printf("%d\t%d\t%d\t\t%d\t\t%d\t\t\t%d\n",p[i],a[i],b[i],g[i+1],w[i],t[i]);
}
printf("\nAverage waiting time %f",avgw);
printf("\nAverage turnarround time %f",avgt);
}