Operating System Lab Programs -FCFS

FCFS

#include<stdio.h>
#include<conio.h>
#include<process.h>
void main()

{

char p[10][5];

int tot=0,wt[10],pt[10],z,n,i;

float avg=0;

printf("\nenter number of process :");

scanf("%d",&n);

for(i=0;i<n;i++)

{

printf("\nenter process %d name : ",i+1);

scanf("%s",&p[i]);

printf("enter process time : ");

scanf("%d",&pt[i]);

}

wt[0]=0;

for (i=1;i<n;i++)

{

wt[i]=wt[i-1]+pt[i-1];

tot=tot+wt[i];

}

avg=(float)tot/n;

printf("\np-name\tp-time\tw-time \n");

for (i=0;i<n;i++)

printf("%s\t%d\t%d\n",p[i],pt[i],wt[i]);

printf("\n total waiting time : %d \n avg wating time : %f \n\n ",tot ,avg);


getch();
}