Que.8

#include<stdio.h> 
#include<conio.h> 
void main() 
{ 
 int i, NOP, sum=0,count=0, y, quant, wt=0, tat=0, at[10], bt[10], temp[10]; 
 float avg_wt, avg_tat; 
 printf("Enter number of processes: "); 
 scanf("%d", &NOP); 
 y = NOP; 
 
for(i=0; i<NOP; i++) 
{ 
printf("\nEnter Arrival and Burst time for process %d \n", i+1); 
printf("Arrival time: "); 
scanf("%d", &at[i]); 
printf("Burst time: "); 
scanf("%d", &bt[i]); 
temp[i] = bt[i]; 
} 
 
printf("Enter Time Quantum for the processes: "); 
scanf("%d", &quant); 
printf("\nProcess \t BT \t\tTAT \t\t WT "); 
for(sum=0, i = 0; y!=0; ) 
{ 
if(temp[i] <= quant && temp[i] > 0) 
{ 
 sum = sum + temp[i]; 
 temp[i] = 0; 
 count=1; 
 } 
 else if(temp[i] > 0) 
 { 
 temp[i] = temp[i] - quant; 
 sum = sum + quant; 
 } 
 if(temp[i]==0 && count==1) 
 { 
 y--; 
 printf("\np %d \t\t %d \t\t %d \t\t %d", i+1, bt[i], sum-at[i], sum-at[i]-bt[i]); 
 wt = wt+sum-at[i]-bt[i]; 
 tat = tat+sum-at[i]; 
 count =0; 
 } 
 if(i==NOP-1) 
 { 
 i=0; 
 } 
 else if(at[i+1]<=sum) 
 { 
 i++; 
 } 
 else 
 { 
 i=0; 
 } 
} 
avg_wt = wt * 1.0/NOP; 
avg_tat = tat * 1.0/NOP; 
printf("\nAverage Turnaround time: %f", avg_wt); 
printf("\nAverage Waiting time: %f", avg_tat); 
getch(); 
}