#include
main()
{int n,i,j,at[10],bt[10],p[10],temp,T,st[10],tat[10],wt[10],S,TBT=0,exe[25],k,BT[10],ft[10];float awt=0.0,atat=0.0;
//———Reading values—————
printf(“enter the number of process\n”);
scanf(“%d”,&n); //Accept number of process
//–Initializing————————
for(i=0;i<n;i++)
{p[i]=-1;
at[i]=-1;
bt[i]=-1;
st[i]=-1;
wt[i]=0;
tat[i]=0;}
//———————————————-
printf("enter the arrival time & burst time for each process \n");
for(i=0;i<n;i++)
{printf("process%d: \n",i);p[i]=i;
printf(" arrival time:");scanf("%d",&at[i]);//Read the arrival time for each process.
printf(" burst time:");scanf("%d",&bt[i]); BT[i]=bt[i]; //Read the burst time for each process.
}
printf("\n enter the time slot:");scanf("%d",&T); //Accepts the time slot to be given.
//——-Sorting according to arrival time—
for(i=0;i<n;i++)
for(j=0;jat[j+1])
{temp=p[j];p[j]=p[j+1];p[j+1]=temp;
temp=at[j];at[j]=at[j+1];at[j+1]=temp;
temp=bt[j];bt[j]=bt[j+1];bt[j+1]=temp;
temp=BT[j];BT[j]=BT[j+1];BT[j+1]=temp;
}
}
//——-Printing process after sorting according to at——-
for(i=0;i%d ->%d”,p[i],at[i],bt[i]);
}
S=at[0]; //S=arrival time of first process.
//———Calculating the total burst time————-
for(i=0;i<n;i++)
TBT=bt[i]+TBT;
printf("\n Total Burst Time(TBT)=%d \n",TBT);
//—–Scheduling the process———–
k=0;
printf("Scheduling……\n");
i=0;
while(S<TBT)
{printf("\nS=%d",S);

if((at[i]=T)
{bt[i]=bt[i]-T;S=S+T;ft[i]=S;printf(” FT=%d”,S);printf(” rBT=%d”,bt[i]);}
else
{S=S+bt[i];bt[i]=0;ft[i]=S;printf(” FT=%d”,S);printf(” rBT=%d”,bt[i]);}

}
if(i=n)i=0;

}//while
printf(“\n process execution order:\n”);
for(i=0;i<k;i++)
printf("%d,",exe[i]);
//for(i=0;i FT=%d,”,p[i],ft[i]);
//or(i=0;i ST=%d,”,p[i],st[i]);
for(i=0;i<n;i++)
tat[i]=ft[i]-at[i];
for(i=0;i<n;i++)
wt[i]=tat[i]-BT[i];
//——–CALCULATING AV.WT & AV.TAT—–
for(i=0;i<n;i++)
{atat=atat+tat[i];awt=awt+wt[i];
}
atat=atat/n;
awt=awt/n;
//————-DISPLAY————–
printf("\n");
printf("process start time wait time turn around time finish time burst time\n");
for(i=0;i<n;i++)
printf("process %d %d %d %d %d %d\n",p[i],st[i],wt[i],tat[i],ft[i],BT[i]);
printf("average wait time=%f \naverage turn around time=%f \n",awt,atat);

}//main

we need a simple non-preemptive Priority scheduling,,can anybody please help us.?.
Please help us..!! this is for our final project..just a simple program will do..
It input how many process,burst time and priority number then calculate the average time and waiting time..and print it’s gantt chart.
Please do help us..we need it badly..
Thank you very much..Godbless us always.