#include<conio.h> #include<stdio.h> int main() { int i,n,p[10]={1,2,3,4,5,6,7,8,9,10},min,k=1,burst=0,pri[10]; int bt[10],temp,temp1,j,at[10],wt[10],rt[10],tt[10],ta=0,sum=0; float wavg,tavg,tsum,wsum; printf("\nenter the No. processes "); scanf("%d",&n); for(i=0;i<n;i++) { printf("\tenter the burst time of %d process",i+1); scanf("%d",&bt[i]); printf("\tEnter the arrival time of %d process ",i+1); scanf("%d",&at[i]); printf("\tEnter the priority time of %d process",i+1); scanf("%d",&pri[i]); } for(i=0;i<n;i++) { for(j=0;j<n;j++) { if(at[i]<at[j])/sorting acc to arrival time/ { temp=p[j]; p[j]=p[i]; p[i]=temp; temp=at[j]; at[j]=at[i]; at[i]=temp; temp1=bt[j]; bt[j]=bt[i]; bt[i]=temp1; } } } for(j=0;j<n;j++) { burst=burst+bt[j]; min=bt[k]; for(i=k;i<n;i++)/main logic/ { min=pri[k]; if (burst>=at[i]) { if(pri[i]<min) { temp=p[k]; p[k]=p[i]; p[i]=temp; temp=at[k]; at[k]=at[i]; at[i]=temp; temp1=bt[k]; bt[k]=bt[i]; bt[i]=temp1; temp=pri[k]; pri[k]=pri[i]; pri[i]=temp;

} } } k++; } wt[0]=0; for(i=1;i<n;i++) { sum=sum+bt[i-1]; wt[i]=sum-at[i]; } for(i=0;i<n;i++) { wsum=wsum+wt[i]; } wavg=wsum/n; for(i=0;i<n;i++) { ta=ta+bt[i]; tt[i]=ta-at[i]; } for(i=0;i<n;i++) { tsum=tsum+tt[i]; } tavg=tsum/n; for(i=0;i<n;i++) { rt[i]=wt[i]; }

printf("************************"); printf("\n RESULT:-\t\t\t VARIOUS TIMES"); printf("\nprocess\t burst\t arrival\tpriority " ); for(i=0;i<n;i++) { printf("\n p%d",p[i]); printf("\t %d",bt[i]); printf("\t %d",at[i]); printf("\t\t %d",pri[i]); } printf("\nwaiting time\tturnaround time\tresponce time"); for(i=0;i<n;i++) { printf("\n %d",wt[i]); printf("\t\t %d",tt[i]); printf("\t\t%d",rt[i]); } printf("\nAVERAGE WAITING TIME:- %f ms",wavg); printf("\nAVERAGE TURN AROUND TIME:- %f ms" ,tavg); printf("\nAVERAGE RESPONSE TIME:- %f ms\n",wavg); }